To____the patient's quick recovery,the doctor gave him the most effective medicine.A make sure B be sure that C insure D ensure 这题选C还是D?为什么?

To____the patient's quick recovery,the doctor gave him the most effective medicine.A make sure B be sure that C insure D ensure 这题选C还是D?为什么?
To____the patient's quick recovery,the doctor gave him the most effective medicine.
A make sure B be sure that C insure D ensure
这题选C还是D?为什么?

To____the patient's quick recovery,the doctor gave him the most effective medicine.A make sure B be sure that C insure D ensure 这题选C还是D?为什么?
选D保证,确保,使安全.
而C主要是偏向于保险之类的,投保,保证,确保.

D. ensure是确保，insure是保险、投保。

d
ensure 英音：[in'ʃuə] 美音：[ɪn'ʃur]
及物动词 vt.
1.保证;担保[O9][+that][+v-ing]
I can't ensure his being on time.
我不能保证他的准时。
I can't ensure that he will be...

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d
ensure 英音：[in'ʃuə] 美音：[ɪn'ʃur]
及物动词 vt.
1.保证;担保[O9][+that][+v-ing]
I can't ensure his being on time.
我不能保证他的准时。
I can't ensure that he will be there on time.
我不能担保他会及时到那儿。
This medicine will ensure you a good night's sleep.
这药将保证你一晚睡眠良好。
2.使安全,保护[Q][(+from/against)]
These are safety devices to ensure workers against accidents.
这些安全设施是为了保护工人不出事故。

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