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【单选题】
下列关于触电事故的预防,错误的是( )A.
实验室内禁止私拉电线
B.
电炉、高压灭菌锅等高温、高压的用电设备在使用中,使用人员不得离开
C.
非电器施工专业人员,切勿擅自拆、改电气线路
D.
在一个电源插座上通过转接头连接多个电器
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皮皮学刷刷变学霸
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【简答题】广告的特性有: 、 、 、 、劝告性、针对性、自控性、责任性。
【简答题】小麦半精量播种所要求的基本苗每公顷是300万苗,徐麦33的千粒重是45克,如果净度98%,发芽率85%,田间出苗率是90%,则小麦播种量每公顷需多少公斤麦种?
【单选题】My friend Julia _ to Shanghai three times. She loves the city very much. [ ]
A.
has been
B.
had been
C.
has gone
【简答题】My advice is that he ______ the city at once. A) should leave B) leaves C) will leave D) has left
【单选题】My grandfather ___to be quite afraid to live in the city, but now he has __ to the life here.
A.
used; used
B.
was used; got used
C.
used; got used
D.
got used; been used
【单选题】— My God! I'm nearly lost in this city. — Yeah. The city ______ a lot. [ ]
A.
changed
B.
has changed
C.
is changing
D.
will change
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