皮皮学，免费搜题
登录
搜题
【单选题】
在等量同种点电荷连线的中垂线上有 A 、 B 两点 , 如图所示,下列结论正确的是( )A.
(A) E A < E B ， 方向相同 ；
B.
(B) E A 不可能等于 E B ， 但方向相同 ；
C.
(C) E A 和 E B 大小可能相等 ， 方向相同 ；
D.
(D) E A 和 E B 大小可能相等 ， 方向不相同。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】The cellphone, a device we have lived with for more than a decade, offers a good example of a popular technology's unforeseen side effects. More than one billion are (1)_____ use around the world, and...
A.
of
B.
for
C.
in
D.
by
【单选题】Which seems to be most significant in telling time to people of pre-industrial societies?
A.
Clock-work.
B.
The sun and the moon.
C.
Unpunctuality.
D.
Changes of season.
【简答题】形成良好班集体的重要标志是( )。 A.核心队伍 B.班级秩序 C.舆论班风 D.组织活动
【单选题】. Nowadays people attach importance _______ the children’s pre-school education.
A.
to
B.
in
C.
of
D.
about
【单选题】To prevent or delay a diabetes diagnosis, people with pre-diabetes should pay most attention to______.
A.
glucose levels
B.
exercises
C.
heart disease
D.
stroke
【单选题】If you copy the online information onto your PC device, you will ______ .
A.
save the time of connecting to the online system
B.
reduce the risk of losing information
C.
pay just local telephone charges
D.
get local information only
相关题目：
参考解析：
知识点：
题目纠错 0
发布
