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【单选题】
地球圈层中最活跃且不单独占有空间的圈层是 [     ]
A.
大气圈
B.
生物圈
C.
水圈
D.
岩石圈
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举一反三
【简答题】English A Because it’s never too late to start learning English Course structure and goals A basic course that improves different English skills. Lessons focus on pronunciation of words and sounds, li...
【单选题】如图所示,直线MN长为2l,弧OCD是以N点为中心,l为半径的半圆弧,N点有正电荷+q,M点有负电荷-q。今将一试探电荷+q 0 从O点出发沿路径OCDP移到无穷远处,设无穷远处电势为零,则电场力作功
A.
A<0,且为有限常量;
B.
A>0,且为有限常量;
C.
A=∞;
D.
A=0。
【单选题】【 2015·福建】33.In recent years an English word "infosphere" has appeared, _______the sense of “information” and " atmosphere".
A.
combine
B.
combined
C.
combining
D.
being combined
【单选题】目前仅收载中药及其饮片的药品标准是
A.
地方药品标准
B.
国家药品标准
C.
中国药典
D.
行业标准
【简答题】The most dynamic combining forms/prefixes for new computer- and Internet-related vocabulary in English are cyber-, virtual, Net- (net), Web- (web-), and E- (e-).请翻译 virtual life
【判断题】One of the course objectives is o help foster current and prospective Chinese business owners with a learning experience by combining elements of learning English vocabulary with usage in the business...
A.
正确
B.
错误
【单选题】如图所示,直线MN长为2l,弧OCD是以N点为中心,l为半径的半圆弧,N点有正电荷+q,M点有负电荷。今将一试验电荷+q0从O点出发沿路径OCDP移到无穷远处,设无穷远处电势为零,则电场力作功( )
A.
W < 0,且为有限常量
B.
W > 0,且为有限常量
C.
W = ∞
D.
W = 0
【单选题】下列哪项不是城市规划的基本特征()?
A.
综合性
B.
战略性
C.
政策性
D.
实践性 (2.5分)
【单选题】如图所示,直线MN 长为2l,弧OCD 是以N 点为中心,l 为半径的半圆弧,N 点有正电荷+q,M 点有负电荷-q.今将一试验电荷+q0 从O 点出发沿路径OCDP 移到无穷远处,设无穷远处电势为零,则电场力作功 【图片】
A.
A < 0 , 且为有限常量
B.
A > 0 , 且为有限常量
C.
A =∞
D.
A = 0
【多选题】Port- is a combining form loaned from both Latin (“porta” means “gate”) and French (“porter” means “to carry”). Can you find out which of the following English words has the morpheme –port- in it that...
A.
Portable.
B.
Transport.
C.
Portal.
D.
Passport.
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