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【多选题】
按沟通的线路划分,行下沟通可分为()A.
单项沟通
B.
非正式沟通
C.
双向沟通
D.
网上沟通
E.
正式沟通
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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...
【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】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】In which of the following atoms is the 3s orbital closest to the nucleus?
A.
Br
B.
Cl
C.
At
D.
I
E.
The 3s orbitals are the same distance from the nucleus in all of these atoms.
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