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【多选题】
土地资源开发利用中的环境问题有( )
A.
水土流失
B.
土地荒漠化
C.
土壤盐渍化
D.
土壤污染
E.
耕地面积不断减少
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举一反三
【单选题】调节血钙浓度最主要的激素是
A.
生长激素
B.
降钙素
C.
甲状腺激素
D.
甲状旁腺素
E.
肾上腺皮质激素
【单选题】—You never stay up till midnight, do you? —___________. But I think it’s bad for our health.
A.
No, never
B.
No, sometimes
C.
Yes, never
D.
Yes, sometimes
【单选题】—Time is limited. I have to finish this tonight. —But it’s midnight now and you should have a sleep ______ much work you have to do.
A.
however
B.
no matter
C.
although
D.
whatever
【单选题】— Jack,you look tired today. What's wrong? — I was _____ busy _____ I didn't go to bed until midnight yesterday. [     ]
A.
so ; that
B.
such ; that
C.
too ; to
【判断题】石子级配好,其空隙率及总表面积小,不仅能降低砂率节约水泥,而且能改善混凝土的和易性提高其密实性。
A.
正确
B.
错误
【单选题】调节血钙浓度最主要的激素是
A.
生长激素
B.
降钙素
C.
甲状腺激素
D.
甲状旁腺激素
E.
肾上腺皮质激素
【简答题】我国统一的会计制度由 ( )根据《会计法》制定。
【单选题】调节血钙浓度最主要的激素是
A.
生长素
B.
降钙素
C.
甲状腺激素
D.
甲状旁腺激素
E.
肾上腺皮质激素
【判断题】89石子级配好,其空隙率及总表面积小,不仅能降低砂率节约水泥,而且能改善混凝土的和易性提高其密实性。
A.
正确
B.
错误
【单选题】—Jack, you look tired today. What's wrong? —I was ____ busy ____ I didn't go to bed until midnight yesterday. [     ]
A.
too; to
B.
so; that
C.
enough; to
D.
such; that
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