（）体积分数的醋酸，在15分针内可杀死大肠杆菌。
A、4％
B、3％
C、2％
D、1％
参考答案：D
— Would you like ______ with me this Sunday?
— Sorry, I have something ______. [ ]
A. going shopping; to do
B. to go shopping; to do
C. going shopping; doing
D. to go shopping; doing
上海一经贸代表团赴东南亚采购货物，下列产品最有可能被列入订单的是（ ）
①棉花 ②棕油 ③橡胶 ④苹果 ⑤小麦 ⑥椰子．
A．③④⑤
B．②④⑤
C．①②⑥
D．②③⑥
