下列引起血小板减少的疾病是()
A．骨髓增生性疾病
B．急性白血病
C．化脓性感染
D．脾切除
E．类风湿性疾病
参考答案：B
—Whose model plane is it? —It’s Jack’s. He made it by _______.
A. he B. himself C. his
渗出(exudation)
