小水泵工不必经过培训。
参考答案:错
女,36岁,上腹疼痛不适2年余。结合超声声像图,诊断为()
A.胆囊息肉
B.胆囊胆汁淤积
C.胆囊结石
D.胆囊癌
E.胆囊腺瘤
Everything is _____ on the earth (地球) than on the moon. [ ]
A. much more heavier
B. much more heavy
C. more heavier
D. much heavier