The word stable in the passage is closest in meaning to
A. visible
B. active
C. constant
D. strong
查看答案
According to paragraph 8, how does bacteria affect beans and clover?
A. It causes many of the plants to die.
B. It limits the growth of young plants.
C. It supplies nitrogen to the crops.
D. It infects the roots with harmful nodules.
某些植物在叶细胞中大量储存五碳糖、黏液等物质来降低冰点,增强抗寒能力。()
A. 正确
B. 错误
【C12】
A. faith
B. hope
C. honor
D. credit
Look at the four squares [■] that show where the following sentence could be inserted in the passage. Such periods of freezing would probably prevent life from developing. Where could the sentence best be added? Click on a square [■] to insert the sentence in the passage.
A. Square A.
B. Square B.
C. Square C.
D. Square D.