心源性哮喘可选用()
A.肾上腺素
B.去甲肾上腺素
C.异丙肾上腺素
D.多巴胺
E.吗啡
参考答案:E
This company was the first _____ portable radios as well as cassette tape recorders in the world.
A.producing
B.to produce
C.having produced
D.produced
“人民法院独立行使审判权,不受任何外来影响”的观点是否正确,为什么?