I’ve tried very hard to improve my English. But by no means _____ with my progress.

A．the teacher is not satisfied

B．is the teacher not satisfied

C．the teacher is satisfied

D．is the teacher satisfied

亨廷顿病患者的CAG拷贝数越多（）

A.发病年龄越早

B.发病年龄越晚

C.临床症状越轻

D.临床症状越重

E.死亡越早