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【判断题】
肽链合成时,核糖体沿着mRNA 3’→5’方向移动。
A.
正确
B.
错误
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举一反三
【判断题】Debt finance does not affect the operating risk but it does add financial risk.
A.
正确
B.
错误
【简答题】下表为元素周期表的一部分,请参照元素①-⑧在表中的位置,用化学用语回答下列问题: (1)②、④、⑤的原子半径由大到小的顺序为____________________。 ②、④、⑤的离子半径由大到小的顺序为____________________。 (2)①②⑥⑦四种元素所对应的气态氢化物最稳定的是________,最不稳定的是_____(填化学式)。 (3)②、③可形成既含离子键又含共价键的化合物...
【简答题】短周期元素A、B、C、D、E的原子序数依次增大,其元素特征信息如表: (1)D原子结构示意图为 _______ ,A在周期表中的位置为 。 (2)B和C形成的化合物的电子式为 。 (3)B和D简单离子的半径大小为 。 (4)元素非金属性强弱比较有很多方法,其中B和E的非金属性强弱的研究方案中不可行的是 (填序号)。 a.比较两种单质的颜色 b.比较两种单质与H 2 化合的难易程度 c.依据两元素在...
【简答题】短周期元素A、B、C、D、E的原子序数依次增大,其元素特征信息如下表 ①D原子结构示意图为____________;A在周期表中的位置为________________; ②用电子式表示B和C形成的化合物 ___________; ③B和D简单离子的半径大小为__________;(用离子符号和“>”、“=”或“④元素非金属性强弱比较有很多方法,其中B和E的非金属性强弱的研究方案中不可行的是___...
【单选题】气管切开术后并发气管食管瘘,其可能原因是
A.
气管切开位置太高
B.
气管切开口太长
C.
气管后壁损伤
D.
伤口感染
E.
损伤甲状腺峡部
【简答题】Managers often have desks that are surprisingly empty! These empty desks can show that the manager often travels and is out of the office most of the time. An empty desk can also show how powerful the...
【单选题】Why may equity finance be preferred to debt finance for developing countries?
A.
A fall in domestic income automatically reduces the earnings of foreign shareholders without violating any loan agreement.
B.
There are laws insuring against any default with equity finance.
C.
The risk is shared between debtor and creditor with debt finance.
D.
The tax structure leaves equity finance unconstrained.
E.
Repayments are unaffected by falls in real income.
【判断题】参证变量与设计断面径流量的相关系数愈大,说明两者在成因上的关系愈密切。
A.
正确
B.
错误
【单选题】We associate the term debt finance with
A.
the bond market, and we associate the term equity finance with the stock market
B.
the stock market, and we associate the term equity finance with the bond market.
C.
financial intermediaries, and we associate the term equity finance with financial markets.
D.
financial markets, and we associate the term equity finance with financial intermediaries.
【单选题】To finance the national debt, the government issues a variety of debt securities. The most widely held liquid security is the Treasury bill, which is commonly issued by the ministry of finance. Howeve...
A.
Right
B.
Wrong
C.
Doesn't say
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