(2012·衡阳高二检测) People often have the belief _______ a healthy environment and development cannot be possible at the same time, but this does not have to be true.
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.The entire cost of South-to –North project will be more than_____that of the Three Gorges project,which is expected to cost below us $ 22 billion.
A double B twice as many as C twice than D as much as twice
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.The meeting________because of the heavy rain,many officers went home in a hurry.
A was cancelled B had been cancelled C having been cancelled D having cancelled