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【单选题】
已知水泥消耗量是41200吨,损耗率是3%,则水泥的净用量为( )吨。
A.
39964
B.
42436
C.
4000
D.
43474
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【单选题】Seen in a microscope, the two most dramatic events in the cell cycle are when the nucleus divides, a process called mitosis, and when the cell itself then splits in two, a process called cytokinesis. ...
A.
G 1
B.
G 2
C.
M
D.
S
【简答题】将下列段落翻译成中文 During the 1930s , Enrico Fermi and his co-workers in Italy performed a number of experiments with the newly discovered neutron. He reasoned correctly that the lack of charge on the neutron...
【单选题】4~23.若干电阻( )后的等效电阻比每个电阻值大。
A.
串联
B.
混联
C.
,并联
D.
星三角形
【多选题】中国境外投资的基本特征 :( )。
A.
投资领域趋于多元化,但以租赁和商业服务业、采矿业、批发零售、金融业和制造业为主
B.
多元化投资格局逐渐形成,但集中性特征明显
C.
投资形式以合资经营和新建为主,但并购交易开始迅速增加
D.
非国有企业对外直接投资不断增加,国有企业投资流量和存量相对下降
【判断题】Though both hydrogen atom, H, and helium atom, He, have 1s electron configurations in ground states, their average distances of electron(s) apart from the nucleus are not equal.
A.
正确
B.
错误
【单选题】Radiocarbon Dating Nowadays scientists can answer many questions about the past through a technique called radiocarbon(放射性碳), or carbon-14, dating. One key to understanding how and why something happe...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】WHO建立了国际医学科学组织委员会,提出了类似脑死亡的四条诊断标准,其中不包括:()
A.
对环境失去一切反应
B.
停止自主呼吸
C.
动脉压下降
D.
脑电图平直
E.
心跳骤停
【单选题】In the early 1900s the discovery that the nucleus contains nucleic acids and proteins led many scientists to believe that ( ).
A.
genes are in the nucleus
B.
genes are broken down by pepsin
C.
genes are made of nucleic acid
D.
genes are made of protein
E.
none of the above
【单选题】外资企业区别于中外合资经营企业的基本特征是()
A.
全部资本由外国投资者投资
B.
具有中国法人资格
C.
在中国境内设立
D.
企业自主经营、自负盈亏
【多选题】WHO 提出的脑死亡诊断标准,包括
A.
无感受性和无反应性
B.
各种反射消失
C.
无运动无呼吸
D.
脑电图平坦
E.
皮肤湿冷
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