下列函数中，周期是的偶函数是（ ） A. B. C. D.
—When is Children's Day? —________ June 1st ________ every year. A．On；/ B．In；/ C．In；on D．On；in
Although her grandma had been ill for a long time, it still came as a shock when shedied. A. slightly B. approximately C. eventually
荷兰有“鲜花王国”之称，促使其成为世界鲜花基地的社会经济因素主要是( ) A．市场需求 B．交通条件的改善 C．花卉栽培技术
（5分））研究人员，发现菜豆种子在萌发成幼苗的过程中，体内储存的有机物会发生规律性的变化。以下是菜豆种子萌发成幼苗的各阶段示意图，请回
It’s time ________our league meeting.A. to begin B. beginning C. that we begin D. that we’ll begin
I like getting up very early in the morning because the morning air is so good ______. A. to be breathed B. to breathe C. breathing D. being breathed
It is reported that the government has ____ the outbreak of violence by sending a large group of soldiers to police the area. A. gone for B. reacted to C. appealed
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