在水情自动测报系统中，一般均采用（），数字信号通过调制解调器利用模拟信道传输数据信息。
A.基带传输
B.频带传输
C.短波传输
D.卫星传输
参考答案：B
The soldiers soon reached _____ was once an old temple _____ the villagers used as a school.
A．which; where
B．what; which
C．where; which;
D．what; where
单室模型静脉滴注给药，体内血药浓度与时间的关系式
A．C＝K0(1-e-kt)/VKB．logC’＝(-K/2.303)t’+log(K0/VK)C．logC’＝(-K/2.303)t’+log(K0(1-e-KT)/VK)D．logC＝(-K/2.303)t+logC0E．logX＝(-K/2.303)t+logX0
