—Perhaps I'm going to the market.

—Would you get me some juice ________ you're there? [ ]

A. since

B. as

C. if

D. after

慢性毒作用带（Zch）值越大的毒物引起（）

A.慢性中毒的危险性越大

B.慢性中毒的危险性越小

C.蓄积中毒的危险性越小

D.致死性中毒的危险性越大

E.致死性中毒的危险性越小