造成劳动力市场的多样性的根本原因在于()。A.不同类型的劳动力之间无法相互替代或不能

At one time or another we have all stopped to think about the weather. Some days the weather is good. Some days the weather is bad. Sometimes a day that seems bad turns out better than you thought it would. There are ways of understanding the weather. One way is to study the clouds. No two clouds are ever alike. We can see the different kinds of clouds and watch them for signs of changing weather. To forecast the weather, there are three things about clouds. you should look for: movement, colour, and change. As a rule, the higher the clouds, the better the weather. And the lower the clouds, the worse the weather is likely to be. Fair-weather cumulus clouds* are another sign of good weather. These are clouds we often see on warm summer days. Clouds can tell you if a storm is on the way. If the thick, fluffy cumulus clouds get bigger early in the day, then you know it will rain. If there is a sudden, cool and dark thunder* cloud appears, then a storm is about to break out. Colours in the sky tell us about the weather, too. A golden ring around the moon warns us that a storm is on the way. A watery yellow sunset is a sign that rain may be near. The rainbow* has a message, too. The colours of the rainbow come from the sun rays shining through falling rain. If you see the sun in the east and a rainbow in the west, the rain may be coming your way. If the sun is in the west and the rainbow is in the east, the rain will be moving away from you.

小题1: According to this article, one way to understand the weather is to    .

A．study the clouds

B．monitor the temperature every hour

C．watch the signs of the wind

D．note the changes in wet小题2: High clouds usually suggest     .

A．bad weather

B．fine weather

C．rainy weather

D．windy weather小题3: The colours of the rainbow come from    .

A．sun rays shining through falling rain

B．dark thunder clouds in the sky

C．a golden ring around the moon

D．fair-weather cumulus clouds小题4: Which of the following would be a good title for this article?

A．The Story of Weather Forecast

B．Fine Weather and Bad Weather

C．Weather Changes

D．Different Kinds of Clouds小题5:We may say, take the article as a whole knowledge,      .

A．none of the clouds is the same

B．a storm is to come on soon after a sudden, cool and dark thunder cloud

C．the higher and cumulus clouds may be signs of warm weather

D．all of the above

依照我国现行《个人所得税法》，下列个人所得，哪些需要缴纳个人所得税？（）

A.甲因购买国库券而获5000元利息

B.乙因买卖股票而获利1000元，

C.丙因购买中国 * * 票而获得价值5000元的财产

D.丁因完成国家级研究课题并因此出版学术专著一本而获3000元稿酬

我国宋元时期的科技文化传播到欧洲（“中学西传”），对欧洲产生了重大影响；中国近代前期，西方科技文化不断涌入中国（“西学东渐”），不断地冲击着中国传统文化的正统地位。结合所学知识，回答近代前期，“西学东渐”是怎样一步一步地冲击着中国传统文化的正统地位的。

下列几种情况除了哪项外，均不能诊为不孕症：（）

A.结婚3年，夫妇同居，配偶生殖功能不正常，未避孕而未受孕

B.结婚3年，夫妇同居，配偶生殖功能正常，婚后避孕2年现未受孕

C.结婚3年，夫妇同居，配偶生殖功能正常，未避孕而未受孕

D.结婚3年，夫妇分居，配偶生殖功能正常，未避孕而未受孕

E.结婚1年，夫妇同居，配偶生殖功能正常，未避孕而未受孕

所谓公安机关的职责，就是( )。

A．公安机关的任务
B．公安机关的义务
C．公安机关的责任
D．公安机关的职业责任