下列除哪项外，均可出现周围性呕吐（）
A.洋地黄中毒
B.急性胃炎
C.胃穿孔
D.胆囊炎
E.咽部受激惹
参考答案：A
Half of surveyed in 16 countries say they go first to their closet friend to share their deepest wishes and darkest fears.
A．these
B．some
C．ones
D．those
我国的大气污染主要是( )。
A．石油性污染 B．混合型污染 C．油烟型污染 D．煤烟型污染
