推动上下牙弓向后发育的动力并非来自
A．翼内肌
B．口轮匝肌
C．上下唇弓肌
D．颧肌
E．唇颊肌
参考答案：A
It depends on the government's measures ____ the housing price will be brought under control by
the end of this year. [ ]
A. how
B. that
C. whether
D. when
诊断急性白血病的主要依据是
A．白细胞数目的增多
B．胸骨的压痛
C．有贫血、发热、出血的三大症状
D．骨髓象示：原始＋幼稚细胞≥30%
E．出现正常细胞性贫血
