若4x3yn与﹣5xmy2是同类项,则m+n=().

题型:填空题

问题:

若4x3yn与﹣5xmy2是同类项,则m+n=(    ).

考点:同类项
题型:填空题

信用证经保兑后,保兑行( )。

A.只有在开证行没有能力付款时,才承担保证付款责任

B.和开证行一样,承担第一性付款责任

C.需和开证行商议决定双方各自的责任

D.保兑行不承担付款责任

题型:填空题

天然饰面石材中,大理石板材的特点是下列表述中的( )。

A.吸水率大,耐磨性好

B.耐久性好,抗风化性能好

C.吸水率小,耐久性差

D.耐磨性好,抗风化性能差

题型:填空题

Britain's oldest man made his first visit to London yesterday at the age of 110. Mr John Evans had never found the time or the money—to make the trip from his home near Swansea. But, when British Rail offered him an all expenses paid birthday trip to the capital, he just could not refuse.

Until yesterday he had never been far from home, except for one trip to Aberdeen. Mr Evans, who spent 60 years working as a miner in South Wales, almost made the journey to London once before, at the turn of the century.“There was a trip to the White City but it was ten shillings (1 shilling="1/20" pound) return from Swansea—too much I thought. All my money went to the family then,” he said.

During the next two days Mr Evans will be taken on a whistle stop tour of London to see the sights. Top of his list is a visit to the Houses of Parliament(国会).

The only arrangement he does not care for is the wheelchair provided to move

him about if he gets tired.“I don't like the chair business—people will so think I am getting old,” he said.

His secret for a long and healthy life has been well publicized—no alcohol, no cigarette and no anger. Before setting off from Swansea with his 76-year-old son, Amwel, he quipped, “I'm glad to see they've given me a return ticket.”

1.It was reported that Mr Evans's healthy long life was to a certain extent due to his________ .

A. wine drinking         B. proper smoking

C. mild temper           D. sense of humor 

2.Which of the following statements is true?

A.A single trip from Mr Evans's home to the White City used to be ten shillings.

B.The first place for Mr Evans to visit is the Houses of Parliament.

C.He appreciated people's arrangement of a wheelchair during his visit.

D.Mr Evans once made the journey to London at the turn of the century. 

3.The word “quip” in the last sentence most probably means  ________.

A. to make a witty remark         B. to express a happy message

C. to make a wish                 D. to tell a joke 

4.What might be the best title for this passage?

A. 110-Year-Old Tourist           B. Secret for Long and Healthy Life

C. Free Return Ticket             D. Sightseeing in London 

题型:填空题

文章的开头部分容易记牢,这是由于()。

A、正迁移作用

B、前摄抑制的影响

C、没有前摄抑制

D、没有负迁移

题型:填空题

在水环境影响评价分级判别时,对于河流与河口,按建设项目排污口附近河段的( )划分水域规模。

A.多年平均流量或平水期平均流量
B.近三年平均流量或平水期平均流量
C.多年平均流量或枯水期最大流量
D.丰水期最小流量或枯水期最大流量

更多题库