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举一反三
【单选题】防止照明灯具引起火灾的措施,下列说法错误的是
A.
大功率灯具,当不需要使用时,应随手关掉
B.
更换防爆型灯具时,可临时用普通白炽灯代替
C.
使用36V的安全灯具时,其电源导线必须有足够大的截面
D.
荧光灯和高压水银灯的镇流器不应该安装在可燃性的建筑构件
【单选题】When changing lanes, a driver should use his turning signal to let other drivers know__________．
A.
he is entering which lane
B.
which lane he is entering
C.
is he entering which lane
D.
which lane is he entering
【单选题】取得搜索语句的结果集中的记录总数的函数是
A.
mysql_fetch_row
B.
mysql_rowid
C.
mysql_num_rows
D.
mysql_fetch_array
【简答题】When (change) lanes, a driver should use his turning signal to let other drivers know.
【单选题】Which one of the following statements can replace the sentence-- “ Should you make a serious driving mistake (e.g., change lanes when there is a car in your “ blind spot ” ) , the computer would sound...
A.
If you should make a serious driving mistake (e.g., change lanes when there is a car in your “ blind spot ” ) , the computer would sound an immediate warning.
B.
You should make a serious driving mistake (e.g., change lanes when there is a car in your “ blind spot ” ) , the computer would sound an immediate warning.
C.
You must make a serious driving mistake (e.g., change lanes when there is a car in your “ blind spot ” ) , the computer would sound an immediate warning.
D.
If you can make a serious driving mistake (e.g., change lanes when there is a car in your “ blind spot ” ) , the computer would sound an immediate warning.
【单选题】防止照明灯具引起火灾的措施,下列说法错误的是 。
A.
大功率灯具,当不需要使用时,应随手关掉
B.
更换防爆型灯具的灯泡时,可临时用普通白炽灯泡代替
C.
使用36V的安全灯具时,其电源导线必须有足够大的截面
D.
荧光灯和高压水银灯的镇流器不应安装在可燃性的建筑构件上
【单选题】防止照明灯具引起火灾的措施,下列说法错误的是_____。
A.
大功率灯具,当不需要使用时,应随手关掉
B.
更换防爆型灯具的灯泡时,可临时用普通白织灯泡代替
C.
使用36V的安全灯具时,其电源导线必须有足够大的截面
D.
荧光灯和高压水银灯的镇流器不应安装在可燃性的建筑构件上
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