电焊作业照明灯电压应不高于()V。
A.32
B.36
C.38
参考答案:B
—The rain ________ fast and heavy.
—You should ________ some shelter. Look at you—you are all wet.
A.is coming; find
B.comes; have found
C.came; find
D.came; have found
选择性动脉栓塞术主要不适反应不包括
A.头痛B.发热C.恶心呕吐D.全身瘙痒E.腹部内脏血管栓塞区疼痛