<strong id="7njxc"><dl id="7njxc"></dl></strong>

<dfn id="7njxc"><dl id="7njxc"></dl></dfn>

<strong id="7njxc"></strong>

<del id="7njxc"></del>

<del id="7njxc"></del>

<small id="7njxc"><progress id="7njxc"><var id="7njxc"></var></progress></small>

單項選擇題

Convection is the principal means （） temperature is equilibrated in liquids and gases.

A.in which
B.on which
C.by which
D.from which

你可能感興趣的試題

單項選擇題

If you （） the equipment more carefully before sail, we （） so much trouble now.

A.examined；are not having
B.had examined；would not have
C.had examined；would not have had
D.should examine；would not have

單項選擇題

We’ve tried many ways, but all in vainOnly in this way, （） the problem, I’m sure.

A.can we solve
B.we can solve
C.we will solve
D.can we solved

^{<strong id="vuwgd"></strong>}