问题
单项选择题
电动系功率表的电流线圈应串联接入电路中,有“*”的“发电机端”应接到电路中的()端,另一电流端接至()。
A、负载侧,任一侧
B、电源侧,负载侧
C、任一侧,电源侧
D、流端钮的任一端,负载侧
答案
参考答案:B
电动系功率表的电流线圈应串联接入电路中,有“*”的“发电机端”应接到电路中的()端,另一电流端接至()。
A、负载侧,任一侧
B、电源侧,负载侧
C、任一侧,电源侧
D、流端钮的任一端,负载侧
参考答案:B
阅读理解。 | ||||||||
| ||||||||
1. The least likely choice for 5-year-old Jack to mare among the museums is _____. | ||||||||
A. MMI B. NYHS C. QMA D. QCFM | ||||||||
2. According to the text, which of the following is NOT true? | ||||||||
A. All the museums mentioned above lie in New York City. B. No other museum in New York City is better than MMI. C. Lucky visitors can see grapes in one of the museums. D. NYHS has the most hands-on activities in America. | ||||||||
3. We can know from the text that _____. | ||||||||
A. people can visit only one of the museums any time and any day B. visitors can pay a visit to all the museums by subway C. there is often a rare bird flying in the sky above MMI D. the Panorama is, as a matter of fact, a great gift shop |