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【单选题】
用卡瓦卡时,必须与( )配合使用,确保安全作业。A.
吊卡
B.
卡瓦
C.
安全卡瓦
D.
液压大钳
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】What kind of roll does a speaker play in the speech process?
A.
The originator of a message that is transmitted to your audience.
B.
The information a speaker communicates to his or her audience.
C.
The means by which a message is communicated.
D.
none of the above
【简答题】排卵是指__________破裂、__________从卵巢排出的过程。
【单选题】用 0.020 mol/L Zn 2+ 溶液滴定 0.020 mol/L EDTA 溶液。已知 lgK ZnY =16.5 , lg a Zn =1.5 , lg a Y =5.0 ,终点时 pZn=8.5 ,则终点误差为( )。
A.
+0.1%
B.
-0.1%
C.
+3%
D.
-3%
【单选题】A battery high-rate discharge (load capacity) test is being perfromed on a 12V battery. Technician A says that a good battery should have a voltage reading of higher than 9.6V while under load at the ...
A.
Technician A only
B.
Both technician A and B
C.
Technician B only
D.
Neither technician A and B
【单选题】What kind of knowledge will you mainly get in the process of learning English songs? ( )
A.
Translation skills
B.
Grammar
C.
Pronuciation
D.
Vocabulary
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