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【单选题】
Which statement about ISO model is correct
A.
ISO model is better than TCP/IP model
B.
ISO model has seven layers
C.
ISO model does not use layered structure
D.
Application layer consists of differet software such as Web browsers
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【单选题】What does Andy ask the bank clerk to do?
A.
Open the mail.
B.
Send the mail.
C.
Keep the mail.
D.
Copy the mail.
【单选题】在Java中,下列关于读写文件的描述错误的是?
A.
Reader类的read()方法用来从源中读取一个字符的数据
B.
Reader类的read(int n )方法用来从源中读取一个字符的数据
C.
Writer类的write(int n)方法用来向输出流写入单个字符
D.
Writer类的write(String str)方法用来向输出流写入一个字符串
【判断题】测量电阻时要断开电源,不是因为安全问题,而是连接电源会引起电阻测量的较大误差。
A.
正确
B.
错误
【单选题】The bank clerk at the counter did not know the' customer and ______ the large amount of money involved was naturally cautious about paying out the sum on the cheque.
A.
in terms of
B.
in sight
C.
in that
D.
in view of
【判断题】Duplex Specific Nuclease能够降解双链DNA和DNA:RNA杂合体中的RNA。
A.
正确
B.
错误
【单选题】Fortunately, the bank clerk ______ press the alarm button before the robbers got away.
A.
could
B.
succeeded in
C.
was able to
D.
managed
【判断题】The bank clerk issued a deposit book and a bank card to the
A.
正确
B.
错误
【多选题】When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?()
A.
Half-duplex Ethernet operates in a shared collision domain.
B.
Half-duplex Ethernet operates in an exclusive broadcast domain.
C.
Half-duplex Ethernet has efficient throughput.
D.
Half-duplex Ethernet has lower effective throughput.
E.
Half-duplex Ethernet operates in an exclusive collision domain.
【单选题】The bank clerk listened carefully _______ he could discover exactly what the client wanted.
A.
in case that
B.
now that
C.
so that
D.
provided that
【单选题】与葡萄糖重吸收关系密切的物质是( )
A.
Na + 的被动重吸收
B.
Na + 的主动重吸收
C.
K + 的主动重吸收
D.
Cl - 的被动重吸收
E.
Ca 2+ 的主动重吸收
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