下列哪一项不属于吸烟健康干预促成因素()
A.纸烟的价格
B.有无吸烟的限制(包括禁止吸烟的法律)
C.戒烟后生理状况得到改善
D.提供戒烟服务
E.预防吸烟与戒烟规划
参考答案:C
—Will you be on holiday soon?
—Well, I'm too busy to take a holiday now. I'll be able to take _______ or two months from now. [ ]
A. this
B. that
C. it
D. one
铬是提高不锈钢耐腐蚀的基本元素,当钢中含铬量达到()%时,钢耐腐蚀性会产生突变。
A.5
B.9
C.12
D.18