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【判断题】
热容量大的材料导热性大，受外界气温影响室内温度变化比较快。( )A.
正确
B.
错误
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举一反三
【单选题】On which of the following did the Justices agree,according to Paragraph4?
A.
Federal officers’ duty to withhold immigrants’information.
B.
States’ independence from federal immigration law.
C.
States’ legitimate role in immigration enforcement.
D.
Congress’s intervention in immigration enforcement.
【简答题】It was the afternoon of December 24, the day before Christmas; and as the newest doctor in our office, I had to work. The only thing that brightened my day was the beautifully decorated Christmas tree...
【简答题】比较革兰氏阳性菌和革兰氏阴性菌细胞壁结构的异同。
【单选题】Which of the following does the writer cite as a source of moral void?
A.
Official corruption．
B.
Social injustice．
C.
Family instability．
D.
Racial prejudice．
【多选题】关于计算机控制系统的特点描述,正确的有
A.
计算机控制系统，由于其所实现功能的软件化，复杂控制系统的实现或控制方案的修改可能只需修改程序、重新组态即可实现。
B.
计算机控制系统可以通过通信网络而互通信息，实现数据和信息共享，能使操作人员及时了解生产情况，改变生产控制和经营策略，使生产处于最优状态。
C.
计算机采用分时操作，用一台计算机可以代替许多台常规仪表，在一台计算机上操作与监视很方便。
D.
计算机具有记忆和判断功能，它能够综合生产中各方面的信息，在生产发生异常情况下，及时做出判断，采取适当措施，并提供故障原因的准确指导，缩短系统维修和排除故障时间，提高系统运行的安全性，提高生产效率，这是常规仪表所达不到的。
【单选题】— Is there an express to Beijing tonight? — There ______ be, but you’d better call the booking office to make sure.
A.
can
B.
might
C.
will
D.
must
【简答题】It was essential that all the necessary documents ________ to the president’s office being the end of this month. A) be handed in B) must be handed in C) should D) had been handed in
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