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【单选题】
20120237在Word文本编辑状态下,选定某些文本后,执行“编辑|复制”命令,则(37)。
A.
选定的文本复制到插入点后
B.
将剪贴板中的内容复制到插入点后
C.
选定的文本复制到剪贴板中
D.
插入点后的文本使用选定文本的格式
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【单选题】The earth is much cooler than the sun, and the wave length of the earth's radiations is much longer than that of sunrays. These longer heat waves cannot pass through the atmosphere as easily as the sh...
A.
heat waves rising from the earth
B.
waves absorbed by water vapor
C.
waves sent out by radio stations that transmit local programs
D.
the rays sent out from the sun
【单选题】变量轴向柱塞泵排量的改变是通过调整斜盘( )的大小来实现的。
A.
方向
B.
角度
C.
A 和 B 都不是
【简答题】accomplish
【多选题】Servlet 用于保持会话的技术有:( )。
A.
Cookie
B.
TCP/IP 三次握手
C.
HTTP session
D.
安全的HTTP协议HTTPS
E.
HTML 隐藏表单域
【单选题】变量轴向柱塞泵排量的改变是通过调整斜盘( )的大小来实现的。
A.
角度
B.
方向
C.
以上都不是
【多选题】Servlet 用于保持会话的技术有( )。
A.
Cookie
B.
TCP/IP 三次握手
C.
安全的 HTTP 协议 HTTPS
D.
HTTP session
【简答题】accomplish
【单选题】变量轴向柱塞泵排量的改变是通过调整斜盘()的大小来实现的。
A.
角度
B.
方向
C.
A和B都不是
【单选题】Microwave communication uses high-frequency(56)waves that travel in straightlines through the air. Because the waves cannot(57)with the curvature of the earth, they can be(58)only over short distance....
A.
optical
B.
radio
C.
electrical
D.
magnetic
【单选题】How could 'levels of electromagnetic radiation that exceed international safety standards' be produced?
A.
Mobile phones give off a lot of electromagnetic radiation.
B.
Train carriages, buses, and lifts are not safe places to use mobile phones.
C.
A lot of people could use their mobile phones in a confined space at the same time.
D.
Blathering produces radio waves which bounce around the interior of these places.
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