______the negative feedback loop works properly, thermoregulation prevents small

游客2024-01-02 43

问题 ______the negative feedback loop works properly, thermoregulation prevents small changes in body temperature from becoming too large.

选项 A、That provided
B、Provided that
C、If that provided
D、If it provides

答案 B

解析 Provided that is the subordinator in this present real conditional sentence.

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