(本小题14分)已知函数f(x)=3x,且f(a+2)=18,g(x)=3ax-

题型:解答题

问题:

(本小题14分)已知函数f(x)=3x,且f(a+2)=18,g(x)=3ax-4x的定义域为区间[-1,1].(1)求g(x)的解析式;(2)判断g(x)的单调性.

考点:指数函数的解析式及定义(定义域、值域)指数与指数幂的运算(整数、有理、无理)
题型:解答题

若月经周期是25天,估计排卵应在月经周期的第几天()。

A.1天

B.8天

C.11天

D.14天

E.25天

题型:解答题

替牙时期是指().

A.2.5~4.0岁

B.4.0~6.0岁

C.6.0~7.0岁

D.8.0~9.0岁

E.6.0~12.0岁

题型:解答题

Regardless of their political affiliation, in all countries women must overcome a host of stumbling blocks that limit their political careers. "Most obstacles to progress consist of (1) of various kinds," says the Inter-Parliamentary Union (IPU), a Geneva-based organization (2) 139 parliaments, including the lack of time, training, information, self-confidence, money, support, motivation, women’s networks and solidarity between women.

In every culture, prejudice and stereotypes (3) hard. The belief still holds (4) that women belong in the kitchen and (5) the children, not at election (6) or in the Speaker’s chair. The media often reinforce traditional images of women, who, upon entering politics, also bear the brunt (正面冲击) of verbal and physical (7) .

In impoverished (贫穷的) countries (8) by civil conflicts and deteriorating economic and social conditions, women are (9) by the tasks of managing everyday life and looking after their families.

The IPU stresses the general lack of child-care facilities—often (10) a privileged few—the (11) of political parties to change the times and running of meetings and the weak backing women receive from their families. That support, which is (12) as well as financial, is (13) vital because women have internalized (14) images of themselves since the (15) of time and often suffer from low self-confidence.

Another obstacle is the lack of financial resources, especially as election campaigns become increasingly expensive. (16) , women encounter more or less open machismo (男子汉的高傲) in the (17) of closed political circles (18) entry to the "second sex. " Lastly, they (19) the lack of solidarity between women, (20) by the fact that the number of available positions is limited.

12()

A.moral

B.mortal

C.orthodox

D.sensible

题型:解答题

要求在2-8℃下存放的疫苗有()

A、卡介苗

B、白破疫苗

C、乙脑疫苗

D、流脑疫苗

题型:解答题

《处方药与非处方药分类管理办法》规定:零售乙类非处方药的商业企业必须经()

A.省级以上药品监督管理部门批准

B.附有标签和说明书

C.印有国家指定的非处方药专有标记

D.具有《药品经营企业许可证》

E.国家食品药品监督管理局批准

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