乙炔气瓶的使用压力不得超过(),输气流速每瓶不得超过1.5m3/h~2m3/h。
A.0.147MPa
B.1.132MPa
C.0.256MPa
D.3.245MPa
参考答案:A
—Can you translate the poem into English?
—I am sorry I am not good at English poems.It’s ______ my ability.
A.over
B.above
C.off
D.beyond
具有定惊安神、活血散瘀功效的药物是()
A.琥珀
B.远志
C.龙骨
D.酸枣仁
E.合欢皮