占地球陆地面积110,为世界第五大洲,有“冰山大陆”之称的大洲是( ) A.亚洲

题型:选择题

问题:

占地球陆地面积

1
10
,为世界第五大洲,有“冰山大陆”之称的大洲是(  )

A.亚洲

B.非洲

C.欧洲

D.南极洲

考点:大洲,大洋
题型:选择题

三角网测量,单个三角形之内任一角应大于()度,小于120度。

A、30

B、45

C、60

D、75

题型:选择题

砂轮机切割时,砂轮片一定要顺时针转。()

题型:选择题

长管状骨急性化脓性骨髓炎发病率从高到低的次序是()

A.胫骨>肱骨>股骨>桡骨

B.股骨>胫骨>肱骨>桡骨

C.肱骨>桡骨>胫骨>股骨

D.桡骨>肱骨>股骨>胫骨

E.胫骨>股骨>肱骨>桡骨

题型:选择题

纵向间隔的时间标准常用的类型有()

A.航空站飞机放行间隔规定

B.航空站进场飞行间隔规定

C.同时有进近、离场飞行时的间隔规定

D.涡流时间规定

题型:选择题

It’s all annual back-to-school routine. One morning you wave goodbye, and that (1) evening you’re burning the late-night oil in sympathy. In the race to improve educational standards, (2) are throwing the books at kids. (3) elementary school students are complaining of homework (4) What’s a well-meaning parent to do.As hard as (5) may he, sit back and chill, experts advise. Though you’ve got to get them to do it, (6) helping too much, or even examining (7) too carefully, you may keep them (8) doing it by themselves. "I wouldn’t advise a parent to check every (9) assignment," says psychologist John Rosemond, author of Ending the Tough Homework. "There’s a (10) of appreciation for trial and error. Let your children (11) the grade they deserve. " Many experts believe parents should gently look over the work of younger children and ask them to rethink their (12) . But "you don’t want them to feel it has to be (13) ," she says.

That’s not to say parents should (14) homework-first, they should monitor how much homework their kids (15) . Thirty minutes a day in the early elementary years and an hour in (16) four, five, and six is standard, says Rosemond. For junior-high students it should be " (17) more than an hour and a half," and two for high school students. If your child (18) has more homework than this, you may want to check (19) other parents and then talk to the teacher about (20) assignments.

16()

A.classes

B.groups

C.grades

D.terms

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