hasaninternalclockthatregulate

______ has an internal clock that regulates the beating of our hearts, and the ______ of our breathing.

A．Mankind; step

B．Human; pace

C．Human being; step

D．Man; pace

登录免费查看答案和解析

相关试题

__________ matters most in learning English is enough practice.

A．What

B．Why

C．Where

D．Which

收藏答案/解析

Choosing the right dictionary depends on __________ you want to use it for.

A．what

B．why

C．how

D．whether

收藏答案/解析

Having checked the doors were closed, and ___ all the lights were off, the boy opened the door to his bedroom.

A．why

B．that

C．when

D．ours1

收藏答案/解析

It is none of your business __________ other people think about you. Believe yourself.

A．how

B．what

C．which

D．when

收藏答案/解析

You can only be sure of __________ you have at present; you cannot be sure of something __________ you might get in the future.

A．that; what

B．what; /

C．which; that

D．/; that

收藏答案/解析

推荐套卷

热门套卷