读图,下列四幅图中,正确表示地球自转方向的是 A、A B、B C、C D、D

题型:选择题

问题:

读图,下列四幅图中,正确表示地球自转方向的是

A、A

B、B

C、C

D、D

考点:地球运动的一般特点
题型:选择题

History, as we know, is filled with facts, with places, names, dates, and events.

History is also filled with feelings, with pain, joy, excitement, and fear.

Facts are set down in books, but what happens to feelings? How can you take the pain, for example, and write it into a history book? You can’t. But you can put it to music. Take the blues for example.

The blues started when black musicians in the South began to sing about their hard times, those times which made them feel blue. The early blues was the beginning of other musical styles, from jazz to rock and roll.

Music, you might say, is a record of feelings.

Of course, facts are important: the civil rights movement, the race for space, the Vietnam War. But the feelings behind these events – the pride of being black, the excitement of a rocket blast (点火起飞), the pain of a war – are also an important part of history.

小题1:In the passage, the word “blue” and the word “blues” are related to __________.

A.a feeling and a kind of music

B.a color

C.a kind of music and a person

D.people and their feelings小题2:According to the writer’s idea, what can make people feel blue?

A.A history book

B.Music.

C.History.

D.Hard times.小题3:Besides the above, the writer also explains ___________.

A.what caused the Vietnam War

B.the feelings behind some important events

C.the relation between history and music

D.why he wrote the article

题型:选择题

混合性呼吸困难多见于

A.喉头水肿

B.哮喘

C.喉头异物

D.肺部感染

E.呼吸中枢衰竭

题型:选择题

无二尖瓣狭窄时PCWP不能反映的指标是

A.肺静脉压

B.肺动脉压

C.肺毛细血管压

D.左房压

E.左心室舒张末压

题型:选择题

利用杠杆撬重物,重点在支点与力点中间,重臂<力臂则()。

A.省力;

B.费力;

C.不省力也不费力

题型:选择题

在消化性溃疡的发病机制中起到关键性作用,是直接原因的是()

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