英语INSTRUMENT指（）A、仪表B、测量C、按钮D、信号

听力原文：When the drawer and drawee of a bill are the same person, the holder may treat the instrument either as a bill of exchange or as a promissory note.

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A．If both the drawer and drawee of an instrument are the same person, the instrument may be treated as a promissory note.

B．In any case, the holder can treat the instrument as a bill of exchange or a promissory note.

C．If both the drawer and drawee of an instrument are the same person, the instrument can only he treated as a promissory note.

D．When the drawer and drawee of a bill are the same person, the holder may treat the instrument neither as a bill of exchange nor as a promissory note.

有如下程序： #include<iostream> using namespace std； class Instrument{ public： virtual void Display=0； }； class Pian0：public Instrument} public： void Display{/*函数体略*/} }； intmain{ Instrument S； Instrument*P=0： //…； return 0； } 下列叙述中正确的是（ ）。

A.语句“Insturment*P=0；”编译时出错

B.语句“Instnunent s；”编译时出错

C.类Pian0中的Display函数不是虚函数

D.类Instrument是一个虚基类

__________

[A] development [B] origin [C] consequence [D] instrument

听力原文：M: If an instrument is payable to the order of both A and B who are not partners, what should they do?

W: Both of them must endorse, unless one has authority to endorse for the other.

Q: Which of the following is not right according to the woman?

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A．Both endorse the instrument.

B．Neither of them endorses the instrument.

C．A authorizes B to endorse the instrument.

D．B authorizes A to endorse the instrument.

A sling psychrometer is a(n) ______.

A.type of cargo gear

B.instrument used in celestial navigation

C.instrument used to measure relative humidity

D.instrument used to measure specific gravity

请选择(17)处最佳答案（ ）。

A．development

B．origin

C．consequence

D．instrument