根据金属活动性顺序,下列能反应的是( ) A.Ag和稀H2SO4溶液 B.Fe和

题型:选择题

问题:

根据金属活动性顺序,下列能反应的是(  )

A.Ag和稀H2SO4溶液

B.Fe和CuSO4溶液

C.Ag和FeCl2溶液

D.Cu和H2SO4溶液

考点:金属活动性
题型:选择题

150 Years of Cool

Look in the bedrooms of young people around the world. You will probably find a pair of blue jeans in each room. Jeans are very popular all over the world.

Jeans give you the feeling of comfort, youth and energy. They have long been liked by every person.

Levi Strauss is an American company. It first made blue jeans. The company was founded in 1853 by 24-year-old Levi Strauss. Twenty years later, he made the first blue jeans in the world. The jeans were used as working trousers for the cowboys of the American West. During the Second World War, American soldiers brought blue jeans to Europe and Asia. People there began to wear jeans. Little by little, they become cool.

People from different countries like different styles of jeans. Americans like to wear simple and single-colored jeans, but many Chinese like to wear jeans with lots of different colors.

Jeans now can be seen everywhere: However, in many places, it’s not always good to wear jeans. No matter how good they may look, or what color they are, it’s often not right to wear jeans in formal places. But, when you are out, relaxing and having fun, jeans are the best choice.

小题1:The story is talking about_____________.

A.Levi Strauss

B.young people

C.cool

D.jeans小题2:Levi Strauss made the first blue jeans_____________.

A.when he was 44

B.when he was 24

C.in 1853

D.in 1924小题3:___________ wore jeans after they were first made.

A.American soldiers

B.American cowboys

C.Levi Strauss

D.The people in Europe小题4:Jeans can be cool for nearly 150 years because _____________.

A.they have different styles

B.they have different colors

C.they make us feel youth, comfort and energy

D.they are working trousers.小题5:When you _____________, you’d better not wear a pair of jeans.

A.go to an important meeting

B.go on a trip

C.have a party

D.are having fun

题型:选择题
下列的配方运算中,不正确的是(  )
A.x2+8x+9=0化为(x+4)2=25
B.2t2-7t-4=0化为(t-
7
4
)2=
81
16
C.x2-2x-99=0化为(x-1)2=100
D.3x2-4x-2=0化为(x-
2
3
)2=
10
9
题型:选择题

100米28特的棉纱在公定回潮率下的重量为().

A.28克

B.2.8克

C.0.28克

D.0.028

题型:选择题

圣彼得大教堂的建筑特点是什么?

题型:选择题

慢性髓系白血病(CML)加速期、急变期合适的治疗方法有()

A.原来未用过伊马替尼者,可给予伊马替尼600~800mg/d治疗

B.慢性期已使用过伊马替尼者,可试用第2代酪氨酸激酶抑制剂(TKI)

C.清髓性异基因干细胞移植

D.TKI联合化学治疗

E.化学治疗

更多题库