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【多选题】
电压的方向规定为由（ ）端指向（ ） 端，是（ ） 力移动电荷所做的功。A.
高电位
B.
低电位
C.
电场力
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反馈参考答案：
举一反三
【简答题】It is important for students to use time ( ).
【单选题】Students use the Internet it for finding information ________ to school and college work.
A.
relating
B.
related
C.
to relate
D.
relate
【简答题】液体沸腾时,它的__________等于外部压强,所以沸点和液面上气体的压强有关,压强________,沸点________。
【判断题】it is not recommended for students to use dictionary to review vocabulary.
A.
正确
B.
错误
【单选题】People use the Internet for their work and students it for finding information related to school and college work. It can also be ______ for leisure.
A.
use; used
B.
using; using
C.
use; use
D.
used; used
【简答题】The Internet is an amazing information resource. Students, teachers, and researchers use it as an investigative tool. Journalists use it to find information for stories. Doctors use it to learn more a...
【单选题】students use it for finding information _______ school and college work.
A.
relate
B.
related to
C.
relating
D.
related
【单选题】Students use the Internet it for finding information ________ to school and college work.
A.
relating
B.
related
C.
relate
D.
to relate
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