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【单选题】
已知某砂性土边坡其坡角为30°,稳定安全系数为1.586,则其内摩擦角为()A.
10
B.
20
C.
30
D.
40
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举一反三
【单选题】Read the paragraph from the introduction [paragraphs 1-6]. Boys wear one color while girls wear another. Students say the practice can be a difficult choice for some teens who are transgender or who d...
A.
Some transgender students agree that boys should wear one color gown while girls wear another.
B.
Some transgender students are fine with two graduation gown colors as long as they get to choose.
C.
Some transgender students are put in a tough situation when schools sort graduation gowns by gender.
D.
Some transgender students have had a hard time convincing schools to have two graduation gown colors.
【简答题】URL的作用是什么？
【单选题】Erika takes megadoses of vitamin B-6 because she thinks it benefits her health. After learning about this vitamin in your nutrition class, which of the following statements about vitamin B-6 would be ...
A.
Ingesting large doses of vitamin B-6 can cause nerve damage.
B.
Megadoses of vitamin B-6 can result in calcification of soft tissues.
C.
Women who take megadoses of vitamin B-6 are healthier than those who don't take such high doses of the vitamin.
D.
Vitamin B-6 is the least toxic of the B vitamins.
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