真菌毒素可致（）
A.真菌感染的典型病变
B.抗酸反应
C.某些癌
D.病原诊断的重要依据
E.感染临床诊断的重要依据
参考答案：C
制梁场的布置应有利于桥梁的预制、存放、运输及()。
A.吊装
B.养护
C.架设
D.验收
—Swimming in the river for teenagers is very dangerous.
—So it is. If I ________ them, I ________ a shower at home.
A．am; would take
B．were; will take
C．was; would take
D．were; would take
