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【单选题】
溶菌酶的溶菌作用属于
A.
特异性免疫应答
B.
非特异性免疫应答
C.
两者都是
D.
两者都不是
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参考答案:
举一反三
【单选题】When the is operated, a supply of pilot air enables the remote valve to open.
A.
distributor
B.
air start lever
C.
turning gear
D.
air valve
【单选题】When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the _____.
A.
dock
B.
hold
C.
pedestal
D.
machinery space
【单选题】How many functional words in the sentence “When the recorder is operated in the record mode,previous recordings are automatically erased” ?
A.
Five
B.
Six
C.
Seven
【单选题】When the inductive motor is operated in motoring region, the rotation direction of the rotor ( ) that of the rotating magnetic field .
A.
is the same as
B.
is opposite to
C.
can be the same or opposite
【单选题】IS曲线能够满足以下哪种关系
A.
收入—支出均衡
B.
总供给和总需求均衡
C.
投资和储蓄相等
D.
以上都对
【单选题】在酱腌菜、存贮饲料和酸乳的制作中起主要作用,是益于宿主健康的微生物。
A.
大豆根瘤菌
B.
炭疽杆菌
C.
破伤风梭菌
D.
乳酸杆菌
【单选题】When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the ____.
A.
cargo hold
B.
dock
C.
machinery space
D.
pedestal
【单选题】在酱腌菜、存贮饲料和酸乳的制作中起主要作用,是益于宿主健康的微生物。
A.
破伤风梭菌
B.
乳酸杆菌
C.
炭疽杆菌
D.
大豆根瘤菌
【单选题】In the sentence “Speed is a property not of any single component of a car, but of the whole system when the car is operated properly”, the word “property” means which of the following?
A.
a building or buildings and the land belonging to it or them
B.
a thing or things belonging to someone
C.
a piece broken off or cut off from sth.
D.
an attribute, quality, or characteristic of something
【单选题】2015 年 9 月 22 日,习近平抵达访美首站西雅图,开启为期 7 天的访美之旅。中美两国在多方面达成共识,实现了经济、科技、人文交流等多方面的合作。这主要强调 ( )
A.
在经济发展的今天,科学技术的反作用
B.
文化是推动经济发展的原动力
C.
我国已经是经济、政治、文化强国
D.
政治对经济、文化的影响
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