【題目】 Peter will ________ his post as the head of the travel agency at the end of next month.
A. take up B. put up C. add up D. break up
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【題目】We______John's name on the race list yesterday but for his recent injury.
A. will put
B. will have put
C. would put
D. would have put
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【題目】Only when I left my parents for Italy ________ how much I loved them.
A.I realized B.I had realized
C.had I realized D.did I realize
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【題目】(12分)樟子松種子數(shù)量少、價格昂貴,目前儲存的種子時間較久且因活力下降而發(fā)芽率低。為提高種子的發(fā)芽率,科研人員研究赤霉素對樟子松種子發(fā)芽率的影響,做了如下實驗。
(1)赤霉素是在植物細(xì)胞之間傳遞_________的分子,對植物生命活動起______作用的微量高效有機物。
(2)科研人員將樟子松種子進行消毒處理后,用不同濃度赤霉素溶液浸種催芽24 h,用蒸餾水沖洗3次,再用蒸餾水浸種催芽12 h,然后放在恒溫箱發(fā)芽,實驗結(jié)果如圖所示。
① 用蒸餾水沖洗的目的是__________________________________________________。
② 實驗結(jié)果可知,用______________濃度的赤霉素處理時,種子發(fā)芽率最高。當(dāng)赤霉素濃度為400 mg·L-1時,對樟子松種子萌發(fā)起___________作用。
③ 實驗結(jié)果表明,適宜濃度的赤霉素_________________________________。
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【題目】 Animals are obviously lower form of life than man.(2013 .江西)
A. a; \
B. the; the
C.a(chǎn);the
D. \;\
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【題目】 The police had to employ force _______ the crowd got out of control.
A. the instant B.at the instant
C.in an instant D. for an instant
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【題目】 This is the reason he didn’t come to the meeting.
A. in which B. with which
C. that D. for which
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【題目】 At the foot of the mountain .
A. a village lies B. is lying a village
C. does a village lie D. lies a village
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【題目】(2016·浙江) Scientists have advanced many theories about why human beings cry tears, none of __________ has been proved.
A. whom B. which C. what D. that
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