属于第二类精神药品的是()
A.三唑仑片
B.麦角胺
C.氯硝西泮片
D.盐酸布桂嗪注射液
参考答案:C
.It is said that the novel Henry had devoted so many years to ______published last week.
A.get
B.gets
C.got
D.getting
水泵流量增大时,有效汽蚀余量()。
A.增大
B.减小
C.不变