A．音调改变
B．音色改变
C．响度改变
D．三项均改变
答案：C
小明读一本故事书，第一天读的页数与总页数的比是7：10，第二天读了42页正好读完．这本书有多少页？
If you are feeling ______, you should share your problems with your friends or family members. [ ]
A. excited
B. stress
C. stressed
D. relaxed
