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【简答题】
电磁式电流继电器、时间继电器、信号继电器和中间继电器在继电保护装置中各起什么作用？各自的图形符号如何表示？感应式电流继器又有哪些功能？其图形符号和文字符号又如何表示？
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【单选题】It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.
A.
must have taken
B.
will take
C.
won’t take
D.
had taken
【简答题】It is thought that one billion people I theworld, _ is half the word’s workers, earn their livingby farming. A.if B. that C. which D. what
【简答题】It is thought that some online communities could be a better resource than CV databases.
【单选题】It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse. w.w.w.k.s.5.u.c.o.m
A.
must have taken
B.
will take
C.
won’t take
D.
had taken
【单选题】病原体侵入人体后，可在入侵部位或某脏器内生长繁殖，并不断排出体外，而不出现任何临床症状，称为
A.
病原携带状态
B.
隐性感染
C.
显性感染
D.
潜伏性感染
E.
轻型感染
【单选题】It_____Tom drives badly.
A.
thinks that
B.
is thought what
C.
thought that
D.
is thought that
【单选题】病原体侵入人体后,可在入侵部位或某脏器内生长繁殖,并不断排出体外,而不出现任何临床症状,称为
A.
潜伏性感染
B.
隐性感染
C.
显性感染
D.
病原携带状态
E.
轻型感染
【单选题】病原体侵入人体后,可在入侵部位或某脏器内生长繁殖,并不断排出体外,而人体不出现任何临床症状,这称为:
A.
病原携带状态
B.
显性感染
C.
隐性感染
D.
潜伏期感染
E.
轻型感染
【单选题】It ________ Bob drives badly.
A.
thinks that
B.
is thought what
C.
thought that
D.
is thought that
【单选题】病原体侵入人体后,可在人侵部位或某脏器内生长繁殖,并不断排出体外而不出现任何临床症状,称为:
A.
病原携带状态
B.
隐性感染
C.
显性感染
D.
潜伏性感染
E.
轻型感染
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