0.5L 1mol/L FeCl3溶液与0.2L1mol/L KCl溶液中的Cl

题型:选择题

问题:

0.5L 1mol/L FeCl3溶液与0.2L1mol/L KCl溶液中的Cl-的数目之比

A.5:2

B.3:1

C.15:2

D.1:3

考点:物质的量
题型:选择题

怎样防治及克服害虫的抗药性?

题型:选择题

Have you been back to the place    your ancestors lived, worked, studied and

played?  Robert Qian , a Chinese Canadian, already has. Now in China, he has found

that his family   like a tall tree with long roots.

Robert is just one young overseas Chinese who    to visit his ancestors’

homeland, as part of the In Search of Roots summer camp program. The program      by the local government of Guangdong Province. This program started in 1980, and so far has brought    overseas Chinese students to China to look for their families’ roots. The young people are usually between 16 and 25 years old. Most, like Robert, can hardly   any Chinese and have never been to China before.

The students mainly visit parts of Guangdong Province in southern China. During the     camp, they study Chinese culture, see changes that have happened in that area, and visit interesting sights. Going to their ancestors’ village is often        part of the trip.The students feel that they are part of the village, and    village life. They drink from the village well, go for walks    the countryside, and watch the villagers do their daily activities.

Cathy Qian, a young American student, had this to say, “    In Search of Roots, I am beginning to understand my Chinese roots and who I am. It has been a great trip, and I have     memories of China to take with me .”

The program leaders believe      in the program and say that the purpose of it is to give young overseas Chinese the chance to learn more about  . “I’ve really enjoyed the trip so far,” says Robert.“This has been a big step for me, and I’m looking forward to   more about my roots during my time here.

小题1:

A.where

B.what

C.that

D.which

小题2:

A.where

B.was

C.is

D.are

小题3:

A.has come

B.have come

C.will come

D.are coming

小题4:

A.can be organized

B.is organizing

C.organizes

D.is organized

小题5:

A.thousands

B.thousands of

C.thousand

D.thousand of

小题6:

A.say

B.speak

C.tell

D.talk

小题7:

A.two-week

B.two weeks

C.two-weeks

D.two week

小题8:

A.the most surprising

B.the most boring

C.more exciting

D.the most exciting

小题9:

A.experience

B.enjoy

C.change

D.worry

小题10:

A.though

B.across

C.cross

D.through

小题11:

A.Thanks for

B.Thanks to

C.Thanks

D.Thanks a lot

小题12:

A.much too

B.too much

C.too many

D.so much

小题13:

A.strongly

B.hardly

C.hard

D.heavily

小题14:

A.himself

B.herself

C.them

D.themselves

小题15:

A.finding out

B.find out

C.helping out

D.help out

题型:选择题

行政环境

题型:选择题

在倾角为α的光滑斜面上,置一通有电流为I,长为L,质量为m的导体棒,如图所示,试求:

(1)欲使棒静止在斜面上,外加匀强磁场的磁感应强度B的最小值和方向

(2)欲使棒静止在斜面上且对斜面无压力,应加匀强磁场B的最小值和方向.

题型:选择题

“其身正,不令而行,其身不正,虽令不从”,与这句名言有关的教师劳动特点是( )。

A.复杂性
B.间接性
C.示范性
D.创造性

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