《规程》中规定，无提升设备的风井风速值最大不得超过（）m/s。
A.4
B.6
C.8
D.15
参考答案：D
以下哪个部门有权决定增加或减少丙类传染病病种（）。
A.国务院
B.国务院卫生行政部门
C.省级人民政府
D.省级人民政府卫生行政部门
E.人大及其常委会
My sister met him at the Grand Theatre yesterdays afternoon, so he ________ your lecture.[ ]
A. couldn't have attended
B. needn't have attended
C. mustn't have attended
D. shouldn't have attended
