It is earths heat______ scientists have developed a sensitive instrument to measure.A．whoB

It is earths heat______ scientists have developed a sensitive instrument to measure.

A．who

B．whom

C．that

D．what

请帮忙给出正确答案和分析，谢谢！

您可能感兴趣的试题

Earth scientists have come to understand that climate______.A．is going through a fundament

答案解析
Natural gas is used in Bremo to heat water because______.A．it produces more steamB．it caus

答案解析
It is _______ to tell which is earth and which is sky.A: enough easyB: easily enoughC:

答案解析
The fact that the earths surface heats______provides a convenient way to divide it into te

答案解析
The cause for the heat in interior of the earth is______.G.E.OLOG.I.STS H.A.VE. B.E.E.N. S

答案解析
The sun heats the earth ______ makes it possible

答案解析
It is _______ to tell which is earth and which is sky.A: enough easyB: easily enoughC:

答案解析