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【单选题】
额 定 电 压 为 220 V 的 照 明 负 载 接 于 线 电 压 为 380 V 的 三 相 四 线 制 电 源 时，必 须 接成 ( ) 形A.
Y形
B.
△形
C.
Y0形
D.
都可以
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反馈参考答案：
举一反三
【判断题】Learning to write concisely--to say in three words rather than ten--will mark you as a highly effective communicator.
A.
正确
B.
错误
【单选题】在 298K 反应 BaCl 2 ·H 2 O ( s ) = BaCl 2 ( s ) + H 2 O ( g ) 达平衡时, p ( H 2 O ) = 330 Pa 。则反应的 为 _____ kJ·mol -1 。
A.
-14.2
B.
14.2
C.
142
D.
-142
【单选题】As you are learning to write, you should have a clear idea of what is good manuscript form.In order to have a good manuscript form,you've to considering the following:
A.
Writing the title
B.
Living margins
C.
Indenting
D.
Capitalizing
E.
Dividing words
【单选题】在 298K 反应 BaCl 2 ·H 2 O(s) = BaCl 2 (s) + H 2 O(g) 达到平衡时, p (H 2 O)=330Pa ,则反应的 △ r G Ө m 为( )。
A.
-14.2 kJ·mol -1
B.
14.2 kJ·mol -1
C.
142 kJ·mol -1
D.
-142 kJ·mol -1
【多选题】In the lecture of “An Introduction to Essay Writing”, three benefits of learning to write a traditional essay of about 500 words are mentioned as follows.
A.
Helping make you a better writer.
B.
Strengthening your skills as a reader and listener.
C.
Making you a stronger thinker.
D.
Making you a better viewer.
【单选题】(2 ) Learning how to write is similar to learning how to speak in public in that writer should _____.
A.
overcome his or her nervousness in the first place
B.
take hold of a reader and talk to him or her before writing
C.
learn to use a typewriter or dictating machine
D.
talk to himself on paper
【简答题】One advantage in learning to speak compared with learning to write is that the speaker gets immediate feedback from the ( ), so the speaker can adjust the message immediately.
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