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【单选题】
出土的大批精致的玉铲、玉斧、、、玉环及人面玉饰,反映出当时人们的宗教意识的发达和玉殉葬已成为一种习俗。其中有一件独有的礼器,其几何形态的造型特殊,有大凸齿三个、小凸齿三十六个。到了黄帝时期起名“玑”,据说是为了观天象。
A.
良渚 文化
B.
红山文化
C.
龙山文化
D.
大汶口文化
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【简答题】Someday a stranger will read your email without your permission or scan the website you have visited. Or perhaps someone will casually glance through your credit card purchases or cell bills to find o...
【单选题】There are some earth phenomena you can count on, but the magnetic field, someday is not of them. It fluctuates in strength, drifts from its axis, and every few 100, 000 years undergo a dramatic polari...
A.
Polarity Reversal: A Fantastic Phenomenon of Nature
B.
Measurement of the Earth's Magnetic-Field Intensity
C.
Formation of the Two Poles of the Earth
D.
A New Approach to the Study of Geophysics
【多选题】常用于检识生物碱的试剂是:
A.
碘- 碘化钾
B.
碘化铋钾
C.
硫酸铜- 氢氧化钠
D.
碘化汞钾
E.
二硫化碳- 硫酸铜
【多选题】常用于检识生物碱的试剂是
A.
碘化铋钾试剂
B.
碘化汞钾试剂
C.
雷氏铵盐试剂
D.
苦味酸试剂
E.
醋酸镁试剂
【单选题】I'm very grateful for your help and hope    that someday I may be able to do something for you___. [    ]
A.
in exchange
B.
in turn
C.
in vain
D.
in particular
【单选题】If you got a million dollars someday, what ______ you do with it?
A.
will
B.
might
C.
shall
D.
can
【单选题】下列哪些运动适合老年人
A.
山地自行车
B.
保健操
【单选题】I _____ you someday.
A.
will join in
B.
will join
C.
joined
D.
joined in
【多选题】常用于检识生物碱的试剂是
A.
碘 - 碘化钾
B.
碘化铋钾
C.
硫酸铜 - 氢氧化钠
D.
碘化汞钾
E.
二硫化碳 - 硫酸酮
【多选题】常用于检识生物碱的试剂是
A.
碘化铋钾试剂
B.
醋酸镁试剂
C.
碘化汞钾试剂
D.
雷氏铵盐试剂
E.
苦味酸试剂
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