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【单选题】
广域网WAN中所采用的传输方式为（  ）。
A.
广播式
B.
集中控制式
C.
分布控制式
D.
存储转发式
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参考答案：
举一反三
【单选题】You’ve been watching _______ 8:00. It’s time to do your homework.
A.
at
B.
by
C.
for
D.
since
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【判断题】如果社会不存在资源的稀缺性，也就不会产生经济学
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：W：You look great since you've been taking the Yoga exercise. M: Thanks! I've never felt better in my life. Q: What does the man imply? (16)
A.
He has never felt good in his life.
B.
The Yoga has improved his health.
C.
He is unhappy about his life.
D.
He is thinking of taking a Yoga exercise.
查看完整题目与答案
【单选题】– I’ve been trying to call you since Sunday night, but there was no answer. – _______________.
A.
My phone was out of order. I didn’t realize it until this morning. 
B.
Did anybody come to visit you over the summer?
C.
Where have you been working since you quit your job at the bank?
查看完整题目与答案
【单选题】德国人从事商务活动时,特别注重礼节形式,下面哪些是描述不恰当的( )
A.
打招呼要称呼他们的头衔，某博士、某某经理等
B.
同德国人谈话时，可以谈其他人或国家政事
C.
德国人信守承诺，合同一旦签订，就不必担心对方违约
D.
不可随意直呼其名
查看完整题目与答案
【判断题】A 、 B 两组分液体混合物,用蒸馏的方法加以分离,是因为 B 的沸点低于 A 的沸点,造成挥发度的差异。
A.
正确
B.
错误
查看完整题目与答案
【简答题】阅读理解。 You've just come home, after living abroad for a few years. Since you've been away, has this country changed for the better-or for the worse? If you've just arrived back in the UK after a fortni...
查看完整题目与答案
【单选题】1980年创办的经济特区不包括:( )
A.
汕头
B.
珠海
C.
厦门
D.
上海
查看完整题目与答案
【单选题】— ____ have you been at this factory? — I've been here since 1993. [     ]
A.
When
B.
How long
C.
What time
D.
How often
查看完整题目与答案
【单选题】听力原文：M: Hi, I've been looking for you since the morning. Where have you been? W: Yeah, I don't feel like hanging out with the crowd any more, especially since Jane stopped coming to school. M: It's su...
A.
How to get a part-time job.
B.
A terrible accident on campus.
C.
How to help a classmate.
D.
Independence of college students.
查看完整题目与答案
相关题目：
【单选题】You’ve been watching _______ 8:00. It’s time to do your homework.
A.
at
B.
by
C.
for
D.
since
查看完整题目与答案
【判断题】如果社会不存在资源的稀缺性，也就不会产生经济学
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：W：You look great since you've been taking the Yoga exercise. M: Thanks! I've never felt better in my life. Q: What does the man imply? (16)
A.
He has never felt good in his life.
B.
The Yoga has improved his health.
C.
He is unhappy about his life.
D.
He is thinking of taking a Yoga exercise.
查看完整题目与答案
【单选题】– I’ve been trying to call you since Sunday night, but there was no answer. – _______________.
A.
My phone was out of order. I didn’t realize it until this morning. 
B.
Did anybody come to visit you over the summer?
C.
Where have you been working since you quit your job at the bank?
查看完整题目与答案
【单选题】德国人从事商务活动时,特别注重礼节形式,下面哪些是描述不恰当的( )
A.
打招呼要称呼他们的头衔，某博士、某某经理等
B.
同德国人谈话时，可以谈其他人或国家政事
C.
德国人信守承诺，合同一旦签订，就不必担心对方违约
D.
不可随意直呼其名
查看完整题目与答案
【判断题】A 、 B 两组分液体混合物,用蒸馏的方法加以分离,是因为 B 的沸点低于 A 的沸点,造成挥发度的差异。
A.
正确
B.
错误
查看完整题目与答案
【简答题】阅读理解。 You've just come home, after living abroad for a few years. Since you've been away, has this country changed for the better-or for the worse? If you've just arrived back in the UK after a fortni...
查看完整题目与答案
【单选题】1980年创办的经济特区不包括:( )
A.
汕头
B.
珠海
C.
厦门
D.
上海
查看完整题目与答案
【单选题】— ____ have you been at this factory? — I've been here since 1993. [     ]
A.
When
B.
How long
C.
What time
D.
How often
查看完整题目与答案
【单选题】听力原文：M: Hi, I've been looking for you since the morning. Where have you been? W: Yeah, I don't feel like hanging out with the crowd any more, especially since Jane stopped coming to school. M: It's su...
A.
How to get a part-time job.
B.
A terrible accident on campus.
C.
How to help a classmate.
D.
Independence of college students.
查看完整题目与答案
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