It is important to maintain a constant temperature inside the greenhouse. The un

游客2023-10-31  26

问题 It is important to maintain a constant temperature inside the greenhouse. The underlined part means

选项 A、prevent.
B、regain.
C、retain.
D、repel.

答案 C

解析 考查动词词义辨析。maintain在此处的意思为“保持”,四个选项中,意思与之一致的是retain“保持,保留”。A.prevent“阻止”;B.regain“恢复”;D.repel“击退”。
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