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【单选题】
下列直流电位差计,准确度更高的是:A.
定阻变流式
B.
变阻式
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举一反三
【单选题】患者,男性,初一学生,体育课时不慎摔倒,右手掌着地,即感右肘疼痛。体检:右肘活动受限,肘后三角关系失常,应考虑为:
A.
右肘关节脱位
B.
右肱骨髁上骨折
C.
右肱骨干骨折
D.
右肱骨髁上骨折并正中神经损伤
E.
右肱骨髁上骨折并正肱神经损伤
【简答题】Much research has been done on interviews in general ________. A) so the training of journalistic interviewers has likewise been strengthened B) though the study of the interviewing techniques hasn’t ...
【单选题】Never before in China ______ for the farmers.
A.
has so much been done
B.
have so much been done
C.
has been done so much
D.
so much has been done
【简答题】Much of the power of the trade unions has been lost ____ , their political influence should be very great. A. As a result B. As usual C. Even so D. So far
【单选题】Rarely ______ by so many students.
A.
so much time has been wasted
B.
has so much time wasted
C.
has so much time been wasted
D.
has wasted so much time
【单选题】当三元催化转化器工作正常时，位于三元催化转化器下游的氧传感器给出的电压信号跃变频率（）。
A.
比较低
B.
比较高
C.
与上游氧传感器的电压信号频率相同
D.
将液压能转变成驱动车轮偏转的机械力
【多选题】承包商获得招标文件后需对合同文本进分析，分析的对象是()，这是合同管理的主要任务。
A.
图纸等技术文件
B.
合同协议书
C.
投资预备会答疑记录
D.
工程量清单
E.
合同条款
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