更多“频谱多普勒超声可直接测量的血流参数是”相关的问题
升降浮沉是指药物对集体有向上、向下、向外、向内四种不同的左右趋向。
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电子支付密码系统的主要模式（）
A . 密码签模式
B . 单一的支付密码
C . 使用IC卡的支付密码器
D . 多项式支付密码器
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4， 23， 68， 101， ？
A．128
B．119
C．74.75
D．70.25
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维持蛋白质胶体溶液稳定的因素包括( )和( )
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国际红十字会的基本原则之一普遍Universality指的是国际红十字与红新月运动是（）的。在运动中，所有红十字会享有同等地位，负有同样责任和义务，相互支援
A.政治性
B.世界性
C.地域性
D.政府性
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监事会的职责为：确保商业银行有效识别、计量、监测和控制各项业务所承担的各种风险，并承担商业银行风险管理的最终责任。()此题为判断题(对，错)。
是
否
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急性CO中毒的抢救，下列哪一项一般不用()
A . A．纠正缺氧
B . B．防治脑水肿
C . C．促进脑细胞功能恢复
D . D．防治并发症
E . E．血液透析
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以保本型理财产品质押的，外币理财产品贷款金额不超过理财产品面值的（）。
A.70%
B.80%
C.85%
D.90%
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弗里德曼认为下列因素中影响货币需求的有()。
A、流动性偏好
B、储蓄和投资
C、财富总量与财富结构
D、持有货币的机会报酬率和机会成本
此题为多项选择题。
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用电设备容量是指客户所有电器设备铭牌上标定的（），如果铭牌上有分挡使用容量，应按其中（）计算。
A.额定功率
B.视在功率
C.最小
D.最大
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倒扣捞筒的卡瓦内径略小于落鱼外径。
A . 正确
B . 错误
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甚高频单工电话是指通信的每一个时刻，通信只沿一个方向进行。
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《山东省特种设备安全监察条例》规定，检验检测机构应当（）立即与使用者办理检验检测结束告知手续。
A.在现场检验检测结束前
B.在现场检验检测结束后
C.在现场检验检测过程中
D.在投入使用前
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Passage Two When imaginative men turn their eyes towards space and wonder whether life exists in any part of it, they may cheer themselves by remembering that life need not resemble closely the life that exists on Earth. Mars looks like the only planet where life like ours could exist, and even this is doubtful. But there may be other kinds of life based on other kinds of chemistry, and they may multiply on Venus or Jupiter. At least we cannot prove at present that they do not. Even more interesting is the possibility that life on their planets may be in a more advanced stage of evolution. Present-day man is in a peculiar and probably temporary stage. His individual units retain a strong sense of personality. They are, in fact, still capable under favorable circumstances of leading individual lives. But man’s societies are already sufficiently developed to have enormously more power and effectiveness than the individuals have. It is not likely that this transitional situation will continue very long on the evolutionary time scale. Fifty thousand years from now man’s societies may have become so close-knit that the individuals retain no sense of separate personality. Then little distinction will remain between the organic parts of the multiple organism and the inorganic parts (machines) that have been constructed by it. A million years further on man and his machines may have merged as closely as the muscles of the human body and the nerve cells that set them in motion. The explorers of space should be prepared for some such situation. If they arrive on a foreign planet that has reached an advanced stage (and this is by no means impossible), they may find it being inhabited by a single large organism composed of many closely cooperating units. The units may be "secondary"—machines created millions of years ago by a previous form of life and given the will and ability to survive and reproduce. They may be built entirely of metals and other durable (耐用的) materials. If this is the case, they may be much more tolerant of their environment, multiplying under conditions that would destroy immediately any organism made of carbon compounds and dependent on the familiar carbon cycle. Such creatures might be relics of a past age, many millions of years ago, when their planet was favorable to the origin of life, or they might be immigrants from a favored planet.
A．human societies will be much more cooperativeB．man will live in a highly organized worldC．machines will replace manD．living beings will disappear from Earth
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镐形截齿切削角为45°时，圆锥角是（）。
A.50°
B.78°
C.80°
D.10°
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