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【简答题】
Model 1: She heard it. Sound cannot travel in space. → She heard that sound cannot travel in space. 5. I wonder about it. What can we do for the poor?
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举一反三
【简答题】幼儿教师的角色演变经历了()、()、和()的过程。
【简答题】这首诗有两次提到“从明天起”,请问明天的生活与昨天、今天的生活有什么区别?诗中的“我”和“你”对幸福的理解有什么不同?
【单选题】The purpose in writing the passage is ______.
A.
to explain why Germany is hopeful
B.
to predict the result of German election
C.
to analyze the current situation of Germany
D.
to draw an analogy between Germany and the Middle East
【简答题】货币制度相继经历了( ) 、( ) 、 ( )、( ) 等四个阶段。
【单选题】有两列沿相反方向传播的相干波，其波动方程分别为y 1 =Acos2π（vt-x／λ）和y 2 =Acos2π（vt+x／λ）叠加后形成驻波，其波腹位置的坐标为：（其中k=0，1，2，3…）（）
A.
x=±kλ
B.
x=±（1／2）（2k+1）λ
C.
x=±（1／2）kλ
D.
x=±（2k+1）λ／4
【简答题】金属货币主要沿着两个方向演变：一是经历了由() 到贵金属的演变;二是经历了 ()由 ()到铸币的演变。
【单选题】According to the passage, why are the public in eastern Germany especially furious with the politicians?
A.
Because the politicians have failed to fulfill the objective of employment.
B.
Because the court falls to convict the tomato-thrower very soon.
C.
Because the unemployment benefits are going to be reduced
D.
Because the unemployment benefits are going to be stopped.
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