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【单选题】
以下关于微波的叙述中正确的是（）A.
微波沿地面传播，绕射能力强，适用于广播和海上通信
B.
微波具有较强的电离层反射能力，适用于环球通信
C.
微波是具有极高频率的电磁波，波长很短，主要是直线传播，也可以从物体上得到反射
D.
微波通信可用于电话，但不宜传输电视图像
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举一反三
【单选题】2) When does the family in the story get ice cream for dessert? A) Before dinner. B) In the middle of dinner. C) In the morning. D) After dinner.
A.
Before dinner.
B.
In the middle of dinner.
C.
In the morning.
D.
After dinner.
【单选题】---Must we donate our pocket money to the poor right now? ---No, you _______. You can think it over and do it before Friday.
A.
mustn’t
B.
needn’t
C.
can’t
D.
couldn’t
【单选题】I'll _____ your suggestion and discuss it with our sales department. A. think of B. think over C. think up D. think as
A.
think of
B.
think over
C.
think up
D.
think as
【单选题】The Greens ______ us with dinner the day before yesterday.
A.
gave
B.
ordered
C.
equipped
D.
entertained
【简答题】A．Before dinner. B．Right after dinner. C．During dinner. D．The next day.
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