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【单选题】
静脉注射较大剂量可引起血压短暂升高的降压药是A.
哌唑嗪
B.
甲基多巴
C.
二氮嗪
D.
肼屈嗪
E.
可乐定
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【简答题】某投资者预通过蝶式套利进行玉米期货交易，他买入2手1月份玉米期货合约，同时卖出5手3月份玉米期货合约，再（ ）。
【单选题】The author mentions the Cyprus jugs to illustrate that
A.
it is hard for archaeologists to distinguish artifacts.
B.
there are still many artifacts to he discovered.
C.
archaeologists consider every artifact valuable.
D.
some artifacts are not practically valuable.
【简答题】动物对饲料的消化方式有（ ）、（ ）和（ ）。
【简答题】动物对饲料的消化方式包括（ ）、（ ）和（ ）。A. 物理性消化 化学性消化 微生物消化
【判断题】Parole refers to the abstract linguistic system shared by all the members of a speech community.
A.
正确
B.
错误
【判断题】Langue refers to the abstract linguistic system shared by all the members of a speech community. Parole refers to the realization of langue in actual use.
A.
正确
B.
错误
【简答题】动物对饲料的消化方式有( )、( )和( )。
【单选题】某投资者预通过蝶式套利进行玉米期货交易，他买入2手1月份玉米期货合约，同时卖出5手3月份玉米期货合约，再( )。
A.
同时买入3手5月份玉米期货合约
B.
一天后买入手5月份玉米期货合约
C.
同时买入1手5月份玉米期货合约
D.
一天后卖出3手5月份玉米期货合约
【判断题】According to the Swiss linguist F. de Saussure,langue refers to the abstract linguistic system shared by all the members of a speech community, parole refers to the speech or oral system of language.
A.
正确
B.
错误
【单选题】The author mentions the Cyprus jugs to illustrate that
A.
it is hard for archaeologists to distinguish artifacts.,
B.
there are still many artifacts to be discovered.
C.
archaeologists consider every artifact valuable.
D.
some artifacts are not practically valuable.
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