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【判断题】

1999年10月下旬至12月初,科学探险考察队,历时40多天,穿行近600千米,实现了人类首次徒步穿越雅鲁藏布大峡谷的历史壮举。

A.
正确
B.
错误
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】()是实现液压放大的回路。

A.
增压回路
B.
减压回路
C.
调压回路
D.
平衡回路

【单选题】前向纠错的实现是( )

A.
错误监测码
B.
按字节计算的错误编码
C.
按位计算的错误编码
D.
差错纠正码

【单选题】()是实现媒体安全的主要技术

A.
数据备份
B.
密钥管理
C.
指纹识别
D.
声音识别

【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s surface, a visitor might assume that the canyon had been caused by some ancient convulsion...

A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s surface
D.
it has caused many visitors to injure themselves