酸碱质子理论认为:凡能给出质子的分子或离子为酸;凡能接受质子的分子或离子为碱。
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The major components of_____ are battery , ignition switch and starter .
A. ignition system
B. starting system
C. fuel system
D. cooling system
On the top of the starter is ______
A. ignition switch
B. flywheel
C. solenoid
D. fuel line
This sweater is ___ of all.
A. Dear
B. Dearer
C. dearest
D. the dearest