问题
单项选择题
在TYJL-Ⅱ型计算机联锁系统驱动单元的驱动信号端和驱动回线（高电位）端测量驱动电源的电压时，应为（）V的脉动电压。
A、1～2
B、2～3
C、3～4
D、4～7
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
在TYJL-Ⅱ型计算机联锁系统驱动单元的驱动信号端和驱动回线（高电位）端测量驱动电源的电压时，应为（）V的脉动电压。
A、1～2
B、2～3
C、3～4
D、4～7
参考答案：D
| 阅读下面的几则寻物及招领启示，选择正确的选项。 | ||||||
LOST (寻物) AND FOUND (招领)
| ||||||
| 1. What color is Tom's notebook? | ||||||
[ ] | ||||||
| A. Yellow and white. B. Yellow and blue. C. Black and white. D. Red and white. | ||||||
| 2. ______ found a black pen and her number is ______. | ||||||
[ ] | ||||||
| A. Jerry; 487-2635 B. Mary; 486-5956 C. Lily; 498-2456 D. Tom; 422-9856 | ||||||
| 3. Please call _______. She found a yellow and white cat. | ||||||
[ ] | ||||||
| A. Lisa B. Mary C. Jim D. Jerry | ||||||
| 4. _______ lost a dictionary and _______ found an English book. | ||||||
[ ] | ||||||
| A. Jerry; Jim B. Jim; Jerry C. Lily ; Lisa D. Lily; Jim | ||||||
| 5. —I lost my ring. —Call _______ at _______. She found a set of keys. | ||||||
[ ] | ||||||
| A. Jim; 530-7534 B. Lily; 498-2456 C. Tom; 456-9800 D. Lisa; 422-9856 |