单项选择题

The underlined word "thermometer" probably means ______.

A．something that is like a stove
B．an instrument for measuring temperature
C．a tool which is used to heat
D．a watch which can be started and stopped when necessary
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单项选择题
From the passage we know ______.
A．the colour of wood or cloth is lighter than that of metal
B．if you stand in a cornfield you'll feel hotter than in a ploughed field
C．when the sunlight is not quite bright light-coloured wood absorbs more heat than dark metal
D．dark things absorb more heat from the sun than others for the same length of time due to their colour, form and material.
单项选择题
The last sentence This curious fact... leads us to conclude that ______.
A．thunderstorms break out over a lake
B．thunderstorms have something to do with the heat from the sun
C．thunderstorms are often seen in winter, too
D．thunderstorms have never happened in dark materials
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