There will be a party ______ Friday. [ ]
A. at
B. in
C. on
D. to
答案:C
冲水渣的()一般不少于渣量的8~10倍。
嘌呤极高食品是:()
A.奶类
B.洋葱
C.南瓜
D.干豆、贝类
E.精白米