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