贻贝隶属于双壳类,其发育经历了变态期,属于其经历时期的是()
A.担轮幼虫和面盘幼虫
B.面盘幼虫和钩介幼虫
C.担轮幼虫和钩介幼虫
D.上述均不是
参考答案:A
肝经湿热下注的临床表现有
A.黄疽
B.小便短赤
C.睾丸肿胀热痛
D.脉弦数
.– Is it true that Jack _______?
--- Exactly. He damaged a very expensive machine.
A.got fired
B.got a fire
C.get fired
D.fired