磷酸二酯酶3抑制药正性肌力作用：
参考答案：抑制CAMP的水解，使CAMP的浓度升高，促使Ca的内流。
根据句意，写出括号内所给单词的适当形式。
小题1:You can make a __________ (choose) among those programmes.
小题2:The little girl came here by train all by __________ (she).
小题3:The lady looks much younger in this __________ (fashion) dress.
小题4:Of the winters in recent years, last winter was the __________ (dry) one.
小题5:The doctors in the hospital are trying a new __________ (treat) for cancer.
《风俗伦》的作者是谁？（）
A、牛顿
B、卢梭
C、莫培督
D、伏尔泰
