肺炭疽的临床表现包括（）
A.突起高热、咳血性痰
B.胸痛、发绀
C.吸气性呼吸困难、发绀
D.纵隔增宽
E.胸腔积液
参考答案：A, B, D, E
.
The growing speed of a plant is influenced by a number of conditions, _______are beyond our control.
A．most of them
B．most of which
C．most of what
D．most of that
生产钨的主要原料是什么？钨的生产过程有哪些？
