不造成肠黏膜损伤的腹泻致病菌是()
A.空肠弯曲菌
B.耶尔森菌
C.金葡菌
D.产毒性大肠杆菌
E.侵袭性大肠杆菌
参考答案:D
— I tried it out in this way, but I failed.
— Why not it in some other ways?
A.to work; try doing
B.to work; try to do
C.working; try to do
D.to work; to try doing
我国交易所股票交易实行价格涨跌幅限制,普通股的涨跌幅比例为( )。
A.5%
B.10%
C.15%
D.20%