百米赛跑时,计时员计时应以( ) A.听到发令枪响开始计时 B.看到发令抢冒白烟

题型:选择题

问题:

百米赛跑时,计时员计时应以(  )

A.听到发令枪响开始计时

B.看到发令抢冒白烟开始

C.运动员起跑时开始计时

D.以上都可

考点:光的传播速度与光年声速
题型:选择题

现有的总行版电话银行个人签约客户卡卡转账的范围不包括()。

A、我行账户

B、同城我行账户

C、他行账户

D、异地我行账户

题型:选择题

细菌的遗传物质不包括

A.染色体

B.质粒

C.噬菌体

D.双螺旋DNA

E.螺旋体

题型:选择题

《生活垃圾焚烧污染控制标准》(GB 18485—2001)中规定,以下说法不正确的是( )。

A.焚烧炉渣与除尘设备收集的焚烧飞灰应分别收集、贮存和运输

B.焚烧炉渣按一般固体废物处理

C.焚烧飞灰按危险废物处理

D.以上说法均不正确

题型:选择题

阅读理解

     An evergreen tree is a Christmas tradition in many American homes. The tree is usually a pine or fir

dressed with lights and other colorful decorations.

     Families might buy a cut tree or go to a tree farm and cut one down themselves. Some people bring a

live tree in a pot into their home for the holidays and then put it back outdoors. Some people rent a

Christmas tree. Companies might bring the same live tree to the same family year after year. Or the tree

might get planted in a park or someplace else where it could help the environment.

     There are some trees that can be reused year after year because they are made of plastic or metal. Or,

instead of a tree, some people have a small, sweet-smelling rosemary (迷迭香) plant, cut to look like a

little Christmas tree.

     Another plant that many people connect with Christmas is the poinsettia (一品红). Poinsettias are

native to Mexico. They can be white or pink, but most are bright red. They are named after the first

American ambassador to Mexico. Joel Poinsett liked them enough to send some back to the United

States. Babies or pets that chew on poinsettias might get sick. But experts say the plant is not as poisonous as some people think.

     Like millions of other houses, the home of America's first president is decorated for Christmas. George Washington's Mount Vernon Estate is in Virginia. Visitors can hear stories about what Christmas was like at Mount Vernon in the eighteenth century. The museum where visitors begin their tour is decorated with

Christmas trees.

1. What is the text mainly about?

A. The customs of Christmas in America.

B. The decoration of Christmas trees.  

C. The tradition of Christmas trees in America.  

D. The history of Christmas in America.

2. It can be inferred from the passage that       .

A. Americans are not allowed to cut a tree for Christmas

B. Americans have various ways to get a Christmas tree

C. a Christmas tree must be planted after it is used

D. every family will change their Christmas trees every year

3. People plant their Christmas trees somewhere after Christmas to       .

A. use it again next year

B. save money on Christmas trees

C. help protect the environment

D. hope for the best in the coming year

4. Joel Poinsett sent some poinsettias back to the United States because       .

A. he wanted to give his people another kind of Christmas trees

B. he wanted his people to remember him

C. he wanted to plant them in his home  

D. he was very fond of them

5. Which of the following is TRUE about poinsettias?

A. American people like them.

B. They are considered to be very poisonous by experts.

C. They are not widely used as Christmas trees.

D. They can only make the old and pets sick.

题型:选择题

某单位从其基本存款账户电汇300万元,应支付多少电子汇划费?()

A、60元

B、50元

C、60.50元

D、50.50元

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