單項(xiàng)選擇題HMDA在絕壓2KPa下的沸點(diǎn)為()℃
A.187
B.174
C.167
D.220
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1.單項(xiàng)選擇題THF/H2O在0.7Mpa下沸點(diǎn)()
A.148
B.138
C.134
D.99
2.單項(xiàng)選擇題THF在0.7Mpa下沸點(diǎn)()
A.99
B.134
C.148
D.138