最易导致肺气肿、肺心病的肺结核是
A.原发型肺结核
B.血行播散型肺结核
C.浸润型肺结核
D.慢性纤维空洞型肺结核
E.结核性胸膜炎
参考答案:D
一级反应有效期计算公式是().
A.1gC=(-k/2.303)t+lgC0
B.t0.9=C0/10k
C.C-C0=-kt
D.t0.9=0.1054/k
E.t1/2=0.693/k
I can't afford the car, five thousand dollars _____ too much for me. [ ]
A. is
B. are
C. be