更多“混捏好的糊料中的气体主要通过（）排出。”相关的问题
平均寿命是种子发芽率从收获后降低到50%的时间。（）
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各分包单位入场前要与总包商项目经理部签订（),否则不得入场施工。
A.《职业安全健康与环境管理协议书》
B.《施工保证书》
C.《安全协议书》
D.《环保协议书》
E.《消防保卫协议书》
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Ulcers Even though ulcers appear to run in families, lifestyle plays more of role than genetic factors in causing the illness, according to a report in the April 13th Journal of Internal Medicine. In particular, smoking and stress in men and the regular use of pain releasing medicines in women were linked with an increased risk of developing an ulcer. Overall, 61% of ulcer risk appears to be due to environmental actors, such as smoking, and the remaining 39% is due to genes according to Dr. Ismo Raiha of the University of Turky and colleagues at the University of Helsinki, Finland. Some researchers had suggested that families may spread Helicobacteria pylori, the bacteria that can cause ulcers. However, the new study suggests this is unlikely, according to the report. Raiha and colleagues studied data from more than 13,000 pairs of twins "to examine the roles of genetic and environmental factors in the origin of peptic ulcer disease," they explain. Both twins were more likely to develop an ulcer if the pair were genetically the. same as compared with a pair of fraternal twins, suggesting that there must be some genetic susceptibility to ulcer development. However, the risk was no greater in twins living together compared with twins living apart, suggesting that shared exposure to H. pylori was not to blame. "Environmental effects were not due to factors shared by family members, and they were related to smoking and stress in men and the use of analgesics in women," the authors wrote. "The minor effects of shared environment to disease liability do not support the concept that the grouping of risk factors, such as H. pylori infection, would explain the genetic factor of peptic ulcer disease," they concluded.
A．Hereditary factors.B．Economic factors.C．Environmental factors.D．Genetic factors.
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以下哪种药物有腐蚀性（）。
A.再矿化液
B.硝酸银溶液
C.75%氟化钠甘油糊剂
D.8%氟化亚锡溶液
E.1.5%含氟凝胶
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关于混凝土浇注及养护，下列（）说法不正确。
A.应连续浇筑，分层浇筑每层厚度不宜超过30～40cm。相邻两层浇筑时间不得超过2.5h（掺缓凝性外加剂的间歇时间由配合比实验确定） B.混凝土底板和顶板不得留施工缝。当设计有变形缝时，宜按变形缝分仓浇筑。 C.宜用电热法和蒸汽养护。 D.冬期施工注意防止结冰，特别是预留孔洞处及容易受冻部位应加强保温措施。
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乙向甲借款9万元，丙、丁、戊三人为连带保证人。借款期届满，乙无力偿还债务，丙代为偿还了该9万元，则丙取得哪些权利？下列表述中，正确的是（）。 ①可以请求乙偿还该9万元 ②可以请求丁、戊偿还其各自应承担
A.①②
B.①③
C.①④
D.①②④
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（）被誉为“绝塞名山”。
A.天子山 B.终南山 C.崂山 D.恒山
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急性病毒性心肌炎患者最重要的护理措施是（）
A.给予易消化的饮食
B.保证患者卧床休息
C.保证蛋白质的供给
D.给予多种维生素
E.记出入量
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输入阻抗的定义为：（）
A.传输线中点位置的总电压与总电流之比
B.传输线终端的总电压与总电流之比
C.传输线始端的总电压与总电流之比
D.传输线上任意一点的总电压与总电流之比
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ISO9000系列标准分成几个层次（）
A.ISO8042
B.ISO8402
C.ISO9000和ISO10000
D.ISO9004
E.ISO9001~9003
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四层梁配筋图中,KL3梁面纵筋按下图施工,则图中的截断长度b至少为( )mm。
A . 2917B . 2034C . 2188D . 1525
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如锅炉负荷不变，当煤的发热量降低时，输煤系统负担将（）。
A、加重
B、减轻
C、不变
D、变化不大
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在五线谱中，谱号的作用是用以确定音级（）的记号。次中音谱表上加第四间的音是（）；中音谱表下加第三线的音是（）。
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