4.27.
A. receive
B. regret
C. understand
D. admit
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4.10Mary picked up her children’s clothes that on the floor.
A. lie
B. willlie
C. have lain
D. were lying
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5.19Nowadays people sometimes separate their waste to make it easier for it().
A. reusing
B. reused
C. reuses
D. to be reused
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3.13 We got to the cinema late ()the heavy traffic.
A. because of
B. instead of
C. according to
D. except for
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4.10Mary picked up her children’s clothes that ()on the floor.
A. lie
B. willlie
C. have lain
D. were lying
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5.24.
A. hardly
B. almost
C. much
D. far
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3.18 When Anna ()the room, a group of young men were talking eagerly round the table.
A. enters
B. has entered
C. was entering
D. entered
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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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1.4下列短语,最适合做文章标题的一项是( )。
A. 植物进化与维管束
B. 植物桥梁:维管束
C. 维管束与植物生长
D. 植物的面包:维管束
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3.35.
A. finish
B. forgive
C. experience
D. consider
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