更多“颗粒分析试验法不适应粒径大于（）的土样。”相关的问题
下列情况中，导致委托合同无效的是( )。
A．委托合同的当事人一方是公民，一方是法人B．委托人无完全民事行为能力C．委托合同的当事人双方都是公民或法人D．委托人超过六十岁
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甲、乙、丙三人的年龄相同.（） （1）甲、乙、丙的年龄成等差数列. （2）甲、乙、丙的年龄成等比数列.
甲、乙、丙三人的年龄相同.（）
（1）甲、乙、丙的年龄成等差数列.
（2）甲、乙、丙的年龄成等比数列.
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某公司准备购入设备以扩充生产能力，现有甲、乙两个方案可供选择。甲方案需初始投资110 000元，使用期限为5年，投资当年产生收益。每年资金流入量如下：第一年为50 000元，...计算甲、乙两个方案的净现值。
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5、胡锦涛同志在2003年“七一”讲话中指出，实现人民的愿望，满足人民的需要，维护人民的利益，是“三个代表”思想的（ ）。
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From the passage we learn that in 1997 the study of 48 heart-attack patients______.A．found most of the patients had suffered repeat heart attacksB．took the scientists about two years to draw their conclusionC．produced newly found evidence about heart attacksD．made surprising findings about laughter's power
A.A．foundB.tookC.producedD.made
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“疑病症”为哪种角色适应不良（）。
A.病人角色冲突
B.病人角色消退
C.病人角色缺如
D.病人角色强化
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当颌位记录时下颌前伸，在戴牙时，全口义齿前牙的关系表现（）
A.反
B.对刃
C.大超
D.深覆
E.正常覆
超
某技术站编制班计划推算中时，本班到达中转车831辆，发出801辆，中转车合计停留1801车小时，计算中时为（）。
A.2.0h B.2.1h C.2.2h D.2.4h
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下列关于手工会计核算会计数据处理流程的表述中，正确的有（）。
A.会计制证人员根据原始凭证制作记账凭证
B.结账前进行账账核对和账证核对
C.记账人员根据审核的记账凭证登记明细账和总账
D.月末结账并生成报表
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TEXT B Some heartening statistics were reported last year by the Journal of the National Cancer Institute: the mortality rate for breast cancer dropped nearly five percent between 1989 and 1992, the Largest decline since 1950. The numbers were even more dramatic for young women: between 1987 and 1992, the mortality rate plummeted nearly 18 percent among white women younger than 40. But discouraging news also surfaced: the mortality rate among black women has gone up, and the number of reported breast cancer cases is rising as well. Twenty years ago a woman’s lifetime risk of breast cancer was one in 12; now it’s one in eight. Nevertheless, we’re on the verge of a revolution in treating this disease. Researchers now have a clear picture of how a cancer cell becomes a tumor -- and how cells break free from a tumor and glide through the bloodstream to seed a new one in another part of the body. And they better understand how the female hormone estrogen makes breast cancer cells grow. "I think we’re going to get this disease licked in my lifetime, "says Dr. Susan M. Love, director of the Revlon/ U. C. L. A. Breast Cancer Center in Los Angeles. Until that time, information is a woman’s most powerful tool. "A cancer diagnosis isn’t an emergency." Dr. Love says. "A patient should take time to educate herself and find out what the options are. "Most of all, a woman needs to remember that breast cancer is not death sentence, and that more than half of all women who develop it will live at least 15 years after their diagnosis. Much of today’s good news centers on refining old therapies. Here’s where we stand in treating breast cancer. Surgery and Radiation. The most dramatic change in breast cancer treatment in the past 20 years is that mastectomy -- removal of the entire breast and often part of the underlying chest muscle -- is no longer considered the only safe course. The chances of survival are no greater after a mastectomy that after the less disfiguring lumpectomy -- in which just the tumor is removed and the breast is left intact--followed by radiation. "There are good reasons to choose mastectomy," says Dr. Larry Norton, chief of breast cancer medicine Manhattan’s Memorial Sloan-kettring Cancer Center. "But if you’re a good candidate for lumpectomy, increasing your chances of a cure isn’t one of those reasons." For about 30 percent of women, mastectomy is the only reasonable choice -- for example, a woman with small breasts and a large tumor, or one whose tumor is disseminated throughout the breast. But concerns about which procedure to choose often have more to do with life-style and attitudes. A lumpectomy requires radiation following surgery to kill any remaining cancer cells, which can mean outpatient visits five days a week for five to seven weeks. Scheduling could be a problem. Nancy Reagan, for instance, decided to have a mastectomy because radiation treatments would have taken too much time. Many women, however, choose mastectomy out of fear and lack of information. Some patients are terrified of radiation and need to understand what it’s really all about, says Carol Fred, a clinical social worker at U. C. L. A’s Rhonda Fleming Mann Resource Center for Women with Cancer. After a lumpectomy the machine that administers the treatment aims radioactive particles at the affected breast only. The treatments make most women tired and can sometimes leave the skin feeling sunburned. But the breast is not left radioactive.
A．They know how a tumor is developed.B．They know how a new tumor is seeded in the body.C．They know how the female hormone estrogen makes breast cancer cells grow.D．They know breast cancer is a death sentence to women.
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风管垂直安装，间距不应大于（），根据直管至少应有2个固定点。
A.4m
B.4.5m
C.5m
D.6m
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卫生间楼板四周除门洞外应做砼翻边，其高度不应小于60mm。
A . 正确
B . 错误
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证明盐与高血压有关的主要证据来自（）。
A.人群间的比较研究B.临床医学研究C.干预实验研究D.基础医学研究
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人文主义法学派的真正代表是（）。
A.特拉沃萨里 B.瓦拉 C.波利田 D.阿西亚特
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当磁场强度不变时，力的大小与流过线圈的（）强度成正比。
A.电阻
B.电压
C.电流
D.电势
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