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【简答题】
大黄根茎的 “ ” 维管束的类型为 _________________________。
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反馈参考答案：
举一反三
【单选题】How does the receptionist know that Talia was angry?
A.
He talked to Talia on the phone.
B.
He watched the news on T.V.
C.
He listened to Talia talking on the phone.
【单选题】We were able to _____ in right away and the receptionist was very helpful.
A.
take
B.
check
C.
put
D.
break
【简答题】质量为 m 的小球 A ,在光滑水平面上以速度 v 0 与质量为 2m 的静止小球 B 发生正碰后, A 球的速率变为原来的1/3, 则 B 球碰后的速率可能是A. B. C. D.
【单选题】质量为 m 的 A 球以水平速度 V 与静止在光滑的水平面上的质量为 3m 的 B 球正碰, A 球的速度变为原来的 1/2 ,则碰后 B 球的速度是(以 V 的方向为正方向) . A.V/2 B.-V C.-V/2 D.V/2
A.
B.
C.
D.
D
【单选题】The receptionist was stuck in traffic, so she was ------ for work.
A.
unable
B.
near
C.
late
D.
soon
【单选题】Why did the receptionist know the letter was for me?
A.
Because he knew it.
B.
Because the stranger had described well enough.
C.
Because there was the name.
D.
Because they knew each other.
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