职业性损害包括( )
A.工作有关疾病
B.职业性外伤
C.职业病
D.食物中毒
E.公害病
参考答案:A,B,C
下列选项中哪项是结肠息肉最主要的临床表现()
A.便血
B.呕吐
C.腹胀
D.便秘
E.腹泻
. After her son gave his life for the country, Sally was well provided____________.
A.with
B.for
C.on
D./