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【单选题】
碎石是天然岩石、卵石或矿山废石经机械破碎、筛分制成的，大于()的岩石颗粒。A.
4.75mm
B.
2.36mm
C.
4.75μm
D.
2.36μm
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Who was the only good writer of America in the colonial period?
A.
John Cotton.
B.
Roger Williams_
C.
Thomas Jefferson.
D.
Benjamin Franklin.
【单选题】Who was the only woman writer that has won both Pulitzer Prize and Nobel Prize?
A.
Pearl S. Buck.
B.
Virginia Woolf.
C.
Tony Morrison.
D.
Katharine Mansfield.
【单选题】一种破伤风类毒素抗体(抗体1)能与发生二硫键全部断裂而变性的破伤风类毒素发生反 应;另一种破伤风类毒素抗体(抗体2)不能与因同种原因变性的破伤风类毒素发生反应。对于这一实验结果,最可能解释
A.
抗体1对破伤风类毒素无特异性
B.
抗体2对破伤风类毒素上的构象决定簇有特异性
C.
抗体1对破伤风类毒素的氨基酸序列有特异性
D.
抗体2对二硫键有特异性
E.
B和C正确
【单选题】Mr. Smith was the only one of the writers invited to the meeting. A. who was B. who were C. which was
A.
1
B.
2
C.
3
D.
4
【单选题】Who was the only one who could stop Yellow Wind? (chapter25)
A.
Lingji
B.
Guanyin
C.
Bajie
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