题目内容

在北京市儿童在食品消费比重上支出最大的是()

A. 婴儿期
B. 幼儿期
C. 学龄前期
D. 学龄期

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A.theirB.the sameC.oneD.slave

A. their
B. the same
C. one
D. slave

A.lain inB.part ofC.within that ofD.staying in

A. lain in
B. part of
C. within that of
D. staying in

A ______ of recent cases of scientific fraud in which gross errors of fact and logic have

A. plethora...intended
B. lack...strained
C. dearth...compromised
D. spate...taxed
E. preponderance...substantiated

Neutron stars are believed to be the highly com-pressed remnants of exploding stars (supernovas) and thus ______of one of the most ______ processes in nature.

A. causes...cataclysmic
B. products...violent
C. examples...equivocal
D. justifications...harsh
E. precursors...dynamic

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