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【判断题】
电阻负载的特点是:电压和电流成正比且波形相同,在单相半波可控 整流电阻性负载电路中,晶闸管控制角的α最大移相范围为0-180 ̊。A.
正确
B.
错误
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举一反三
【单选题】Whether the buildings in this area should be pulled down has remained ________； people are still looking for other possible solutions. [ ]
A.
unchallenged
B.
relevant
C.
controversial
D.
contradictory
【单选题】The murder still looked ______ in court.
A.
prejudice n. 侵害; 成见，偏见，歧视; 伤害;vt. 使有偏见;
B.
trash n. 垃圾，废物; 断枝，碎块;;vt. 废弃; 拆毁;
C.
fierce adj. 猛烈的; 凶猛的，残忍的; 狂热的;
D.
keen adj. 锐利的; 厉害的，强烈的; 敏锐的，敏捷的; 热心的;
【单选题】Many countries still execute people who__________serious crimes，especially murder．
A.
carry
B.
do
C.
commit
D.
violate
【简答题】People feel uneasy about that murder (上周从监狱逃跑) and is still at large.
【单选题】Many countries still execute people who ______ serious crimes, especially murder.
A.
commit
B.
do
C.
carry
D.
violate
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