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【单选题】
Paraphrase : Choose the choice that best explains the meaning of the original sentence. This book contains a totally new outlook that combines the wisdom of the past with scientific knowledge to solve the problems of the present.A.
Problems of the past and present are solved in this book.
B.
None of today’s problems can be solved without scientific knowledge.
C.
Only by using knowledge of the past and present can we solve problems.
D.
In this book, current knowledge and past wisdom are combined to solve current problems.
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举一反三
【简答题】第兵是由直接领导的战略导弹部队，是我国()、()的主要力量。
【单选题】关于光速，下列说法不正确的是（ ）
A.
光的传播速度总是3.0×10 8 m/s
B.
光的传播速度最大值为3.0×l0 8 m/s
C.
光年是长度单位
D.
光年是天文学上表示距离的单位
【简答题】We were most________by your efficiency. (impress)
【单选题】下列关于电磁波的传播速度的叙述中，正确的是（ ）
A.
电磁波的传播速度大于光的传播速度
B.
电磁波在真空中不能传播
C.
各种频率的电磁波传播速度都相同
D.
只有可见光在真空中的传播速度是3×10 8 m/s
【简答题】单词拼写 1．The teacher tells us the harder we work, the ________(幸福) we feel. 2．All things ________ (考虑), I think we ought to give the job to George. 3．Since no one is ________(反对) it, we'll adopt the pro...
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