住房公积金的缴存比例一般不得低于( )。
A.3%
B.5%
C.10%
D.12%
参考答案:B
重度一氧化碳中毒的急救要点为()。
A.防治肺水肿
B.控制脑水肿
C.防治心肌损害
D.纠正水、电解质及酸碱平衡失调
E.促进脑细胞代谢
The plant products have been carefully inspected and are considered to be ()from any quarantine pests.
A.out
B.away
C.free
D.far