安全用具中属于基本安全用具的是()。
A.绝缘手套;
B.绝缘靴;
C.绝缘夹钳。
参考答案:C
. No teacher and no student ______.
A.are admitted
B.is admitted
C.are admitting
D.is admitting
—When did you last hear _____ Jay?
—He phoned me this morning, and we agreed____ a time and place to meet.
A.of, to
B.about, with
C.from, with
D.from, on