3.11 Bill is not in the office. He()to the library an hour ago.
A. went
B. has gone
C. would go
D. has been
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5.9 Lots of rescue workers were working around the clock,()supplies to Yushu, Qinghai province after the earthquake.
A. sending
B. to send
C. having sent
D. to have sent
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1.8对第三段文字中词句的理解,不正确的一项是( )。
A. “维管束表现植物智慧”,意思是指在发展进化中,植物改变自己以适应生长需要而表现出的生命活力。
B. “树活一层皮”的俗语,反映了过去人们在维管束功能方面认识上的不足,以为只是树皮在发挥作用。
C. 维管束中的木质部导管和韧皮部筛管细胞,分别输送不同的营养物质,这样能够“提高运输效率”。
D. “伴胞”是植物体中的一种小细胞,作为维管束系统中的一部分,主要是帮助筛管细胞运输大分子有机物。
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4.11Jane had already finished cooking the time I got home.
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3.18 We will go out for a picnic ()it doesn’ t rain tomorrow.
A. if
B. after
C. that
D. though
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2.25
A. places
B. gardens
C. ways
D. stations
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2.27
A. attended
B. missed
C. escaped
D. changed
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4.20The light was so that I had to cover my eyes.
A. bright
B. weak
C. soft
D. natural
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4.11Jane had already finished cooking ()the time I got home.
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5.16公子无忌悄悄步行往见身为“博徒卖浆者流”的毛公、薛公说明什么?(5分)
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