根据我国《招标投标法》，招标人和中标人订立书面合同的时限是( )之日起30日内。A

读下面的一篇短文，然后根据短文内容，将问题的最佳答案填写在题目前的括号里。

    One day we invited some friends to dinner. When it was about six o'clock, my wife found that we had

little bread.

    So she asked our five-year-old daughter, Kathy, to buy some.

    "Here's a dollar," my wife said," get two loaves (条) of bread, if they have it. If they don't have it, get

anything. But hurry!" Kathy hurried off, and we waited and waited. By a quarter past six, all the friends had

arrived. But Kathy had not returned. Finally we saw her dancing around the corner with a bright new hula

hoop (呼啦圈) whirling (旋转) round her middle.

    "Kathy!" Her mother cried. "Where did you get that hula hoop, and where is the bread?"

    "Well, when I got to the shop, they had sold all their bread," answered Kathy. "And you said 'If they don't

have that, get anything!'"

1. One day Kathy's parents invited some friends to ______. [ ]

A. has breakfast

B. have lunch

C. has supper

D. have a party

2. How much did Kathy's mother give her? [ ]

A. a dollar

B. two dollars

C. five dollars

D. six dollars

3. Kathy ______ in a hurry. [ ]

A. played games

B. went to the shop

C. went to dance

D. came back home

4. What did Kathy buy at last? [ ]

A. other food

B. nothing

C. hula hoop

D. two loaves of bread

5. Why did she do this? [ ]

A. because the shop had sold all their bread.

B. because her mother asked her to get anything if they hadn't had bread.

C. because she loved playing with hula hoop.

D. all above.

若a＜b，那么下列各式中，不一定成立的是（　　）

A．-4+a＜-3+b

B．a-3＜b-3

C．-2a＞-2b

D．a²＜b²

（）不属于行政诉讼审理前的准备（）

A.依法组成合议厅

B.搜集证据

C.提供翻译

D.法庭调查

E.调取证据

按《化妆品卫生规范》（1999年12月），新开发的祛斑类化妆品在投放市场前，为评价其安全性，必须进行的理化检验有（）。

A.性激素、汞、甲醛

B.pH、苯酚、氢醌

C.氢醌、性激素、汞

D.苯酚、氢醌、性激素

E.汞、甲醛、pH

西路军组建之初，骑兵师和妇女团的建制和装备情况？