骨肉瘤病人可出现
A．血酸性磷酸酶升高B．血碱性磷酸酶升高C．血CEA升高D．血AFP升高E．血VCA-IgA抗体升高
参考答案：B
–People now can know what is happening in the world quickly.
--You’re right. With the help of computers, news can ______ every corner of the world.
A．get
B．reach
C．return
D．arrive
当菌斑染色阳性百分率为多少时，即属于菌斑基本被控制（）
A.10%以下
B.15%以下
C.20%以下
D.25%以下
E.30%以下
