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【单选题】
种庄稼需要水,但某地区近年老是不下雨,怎么办?一种办法是灌溉,以补充不下雨的不足,另一办法是改种耐旱作物,使所种作物与环境相适应。这两种措施分别是( )
A.
纠正偏差和调整计划
B.
调整计划和纠正偏差
C.
前馈控制和反馈控制
D.
反馈控制和前馈控制
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【简答题】体内抗病毒、抗毒素、抗细菌最重要的抗体为
【简答题】( ) (v.) to cause a particular reaction or have a particular effect
【单选题】Harriet says that after actors have played a particular character, they
A.
may be asked to play other similar characters.
B.
may become a bit like the character.
C.
will never want to play the part again.
D.
will never forget how to play the part.
【简答题】P148 No.2 Economists in Funlandia,a closed economy,have collected the following information about the economy for a particular year. Y=10000,C=6000,T=1500,G=1700 The economists also estimate that the ...
【单选题】Match the following formal review roles and responsibilities: Roles 1) Moderator. 2) Recorder. 3) Reviewer. 4)Manager. Responsibilities p) The person chosen to represent a particular viewpoint and rol...
A.
1Q, 2S, 3P, 4R
B.
1R, 2S, 3P, 4Q
C.
1Q, 2P, 3S, 4R
D.
1R, 2P, 3S, 4Q
【单选题】氟利昂可用作致冷剂,它是:
A.
烯烃
B.
炔烃
C.
胺类
D.
含氟及氯的烷烃
【简答题】Vocabulary—Fill in the blanks with proper words. The first letters have been given. S 1 , in business and finance, means a share of ownership in a corporation. S 2 are issued, subscribed 认购 , b 3 and ...
【单选题】(p. 59) If customers believe they have multiple service providers to choose from for a particular service, or if they can provide the service for themselves, their levels of adequate service are _____...
A.
Lower than
B.
Higher than
C.
More volatile than
D.
More stable than
E.
The same as
【单选题】体内抗病毒、抗毒素、抗细菌最重要的抗体为
A.
IgM
B.
IgA
C.
IgG
D.
IgE
E.
IgD
【单选题】体内抗病毒、抗毒素、抗细菌最重要的抗体为
A.
IgM
B.
IgA
C.
IgG
D.
D 、 IgE
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