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【单选题】
对于移相控制电路,为了限制最小移相控制角和设置移相范围,可在输入控制信号的输入端再叠加一个 。A.
交流电压
B.
偏移电压
C.
同步信号
D.
触发信号
手机使用
分享
复制链接
新浪微博
分享QQ
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反馈参考答案：
举一反三
【多选题】The better English collocation for the Chinese phrase “保护环境” could be
A.
environmental protection
B.
environment protection
C.
protect environment friendly
D.
keep the environment friendly
【多选题】The better English collocation for the Chinese phrase “保护环境” could be
A.
protect environment friendly
B.
environmental protection
C.
keep the environment friendly
D.
environment protection
【单选题】The Chinese phrase wugu bufen firstly appeared in which of the following books:
A.
The Analects of Confucius
B.
the Rites of Zhou
C.
the Book of Mencius
D.
Huainanzi
【简答题】Find the English version of the Chinese phrase in the text. 亲自作调查
【简答题】Find the English version of the Chinese phrase in the text. 做现场观察
【判断题】The Chinese phrase “ 窝心 ” has completely the opposite meaning in traditional and simplified Chinese.
A.
正确
B.
错误
【简答题】Find the English version of the Chinese phrase in the text. 社会阶层
【多选题】The better English collocation for the Chinese phrase “保护环境” could be
A.
protect environment friendly
B.
environment protection
C.
keep the environment friendly
D.
environmental protection
【多选题】The better English collocation for the Chinese phrase “欣赏风景” could be
A.
enjoy scenery
B.
appreciate scenery
C.
enjoy nature
D.
appreciate nature
【单选题】主机和外设之间的正确连接通路是（ ）。
A.
CPU 和主存 ─ I/O 总线 ─ I/O 接口 ( 外设控制器 ) ─ 通信总线 ( 电缆 ) ─ 外设
B.
CPU 和主存 ─ I/O 接口 ( 外设控制器 ) ─ I/O 总线 ─ 通信总线 ( 电缆 ) ─ 外设
C.
CPU 和主存 ─ I/O 总线 ─ 通信总线 ( 电缆 ) ─ I/O 接口 ( 外设控制器 ) ─ 外设
D.
CPU 和主存 ─ I/O 接口 ( 外设控制器 ) ─ 通信总线 ( 电缆 ) ─ I/O 总线 ─ 外设
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