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【判断题】
化学试剂选用的原则是在满足实验要求的前提下,选择试剂的级别应就低而不就高。即不超级造成浪费,且不能随意降低试剂级别而影响分析结果。()
A.
正确
B.
错误
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参考答案:
举一反三
【简答题】Conversation 3 Steve and Tom are (5) ___________ . Steve's (6) ___________ will be away tomorrow.
【简答题】A.Tom is coming for dinner. B.Tom won't be able to come. C.Tom will give a dinner party. D.Tom won't be away on business.
【判断题】在液压传动中,人们利用液体来传递动力和运动。
A.
正确
B.
错误
【简答题】Tom ______(be) away from Shanghai for five days.
【简答题】听短文,回答问题。 1. When do tigers live as a family? A. When they have wives B. When they have babies C. When they have sisters or brothers 2. Who teaches baby tigers to catch other animals? A. mothers B. fa...
【简答题】Fill in the blanks with the expressions given below.Change the forms where necessary. as a result at first be up to grow up in addition keep up with make friends with set up turn out ...
【单选题】Our country is_______ 56 nations and_______ of them can be tom away from the motherland.
A.
made into; no
B.
made of; any
C.
made up of; none
D.
made by; no one
【单选题】孙女士,32岁,婚后自然流产2次,近2年月经量增多,经期延长,下腹坠胀:无痛经史。妇科检查:子宫前位,妊娠2个半月大小,质中,表面结节感,宫体活动,无明显压痛;双侧附件阴性。其最可能的临床诊断是
A.
子宫内膜异位症
B.
子宫内膜癌
C.
子宫肌瘤
D.
妊娠子宫
E.
E.稽留流产
【简答题】fall into in addition in public go beyond far and wide be made up of as well as as a result make sure come to get caught up in in charge of 1. Tom fell and broke his leg...
【单选题】在液压传动中人们利用 ( )来传递动力和运动。
A.
固体
B.
液体
C.
气体
D.
绝缘体
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