攀登的用具结构构件上必须牢固可靠。工人上下的踏板其使用荷载不应大于()
A.1000N
B.1100N
C.1200N
D.1300N
参考答案:B
________ you have offered me! I am out of trouble now.
A.What valuable advice
B.what valuable suggestion
C.How a useful advice
D.How useful suggestions
关于急性肝衰竭的实验室检查,下列哪项是错误的()
A.久发生弥漫性肝坏死时,转氨酶增高
B.胆红素增高
C.血小板降低,白细胞增高
D.电解质紊乱
E.酸碱失衡