上颌第一磨牙最小的牙尖是
A．近中颊尖B．远中舌尖C．远中颊尖D．近中舌尖E．以上都不是
参考答案：B
As a result of the destruction of the forest, a large ________ of animals ________ lost their living places.
A．number; has
B．amount; has
C．number; have
D．quantity; have
周恩来“为中华之崛起而读书”主要体现了他有[ ]
A．强烈的社会责任感
B．无私奉献的精神
C．顽强拼搏的进取精神
D．刻苦钻研的进取精神
