启动汽车时,使用启动机每次不得超过()
A.10s;
B.8s;
C.5s;
D.3s
参考答案:C
Every possible means ________ to prevent the air pollution,but the sky is still not very clear.
A.were using
B.have used
C.has been used
D.was used
心理咨询工作者应具备的条件不包括()
A.良好的道德品质
B.丰富的专业知识
C.基本的医学知识
D.广博的社会知识
E.健壮的身体素质