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【单选题】
Listen to six people ask questions about food and drink in a restaurant . Choose the itme that each person is talking about.A.
water
B.
bread
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【简答题】下列各种类型的数据文件中,不可以导入到Access数据库的是______。
【单选题】带通载波调制是以下哪一项()。
A.
将计算机输出的基带0和1方波信号乘以一个载波变为模拟信号，以利于媒体传输。
B.
将不同路信号合并使得它们共用传输媒体。
C.
将计算机0、1信号转换为另外一种基带数字信号，用不同的方波代表1或0，更加利于信道传输。
D.
为了提高传输效率，将数字信号进行校验。
【单选题】In 1914, an apparently insignificant event in a remote part of Eastern Europe ______ Europe into a great war.
A.
plunged
B.
imposed
C.
pitched
D.
inserted
【简答题】根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项，并在答题卡上将该选项涂黑。选项中有两个为多余选项。 Jack: How do you keep in touch with your aunt in America? Emma: Oh．I make a phone call once a month． Jack: 6 Emma: Yeah． Jack: 7 Emma: I h...
【单选题】The starting spot of the Changjiang River may be ______.
A.
somewhere in the eastern part of China
B.
somewhere in the northern part of China
C.
somewhere in the place north of Tibet
D.
somewhere in the place north to Tibet
【单选题】In 1914, an apparently insignificant event in a remote part of Eastern Europe ______ Europe into a great war.
A.
inserted
B.
pitched
C.
imposed
D.
plunged
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