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【单选题】
Mary___________ computer science last year.A.
studies
B.
studied
C.
will study
D.
studying
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【单选题】To fetch water before breakfast seemed to me a rule ______.
A.
to never break
B.
never to have broken
C.
never to be broken
D.
never to be breaking
【简答题】Look and write. 1. The bag is _______ the desk. 2. The pencil-box is _______ the bag 3. The pen is _______ the pencil - box. 4. The dog is _______ the chair. 5. A: What's this, pl _______ se? 6. B: It...
【单选题】Most people will find it easier to speed on a highway when everybody ______ is driving over the speed limit.
A.
too
B.
also
C.
else
D.
alone
【单选题】在下面对数据链路层的功能特性描述中,哪一个不是正确的
A.
通过交换与路由，找到数据通过网络的最有效的路径；
B.
数据链路层的主要任务是提供一种可靠的通过物理介质传输数据的方法
C.
将数据分解成帧，并按顺序传输帧，并处理接收端发回的确认帧
D.
以太网的数据链路层分为LLC和MAC子层
【简答题】卫生整理:在 ( ) 的前提下,提高其抗微生物的能力,杜绝病菌传播媒介和损伤纤维的途径,最终使纺织品在 ( ) 时间内保持有效的卫生状态
【单选题】To fetch water before breakfast seemed to me a rule__________. [ ]
A.
to never break
B.
never to be broken
C.
never to have broken
D.
never to be breaking
【简答题】根据句意及首字母提示完成单词。 1.—Where's my baseball? —It's on the f_______, under the table. 2. Please put the desk b_______the sofa and the dresser. 3.—Where is my c_______? —It's under the table. 4.—W_______ is ...
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