The sentence "Tom was cutting a piece of metal with great care" is a periodic sentence.
A、正确
B、错误

In illustration essays, what kind of examples can write...

多项选择题In illustration essays, what kind of examples can writers use?  （   ） A.  General    B. Specific  C. Representative   D. Relevant

The accuracy and variety of pronunciation include _____...

单项选择题The accuracy and variety of pronunciation include ________.
A、stress
B、intonation
C、chunking
D、above all

（ ）A.有相同的数学期望B.有相同的方差C.服从同一指数分布D.服从同一离散型分布

单项选择题（ ） A. 有相同的数学期望 B. 有相同的方差 C. 服从同一指数分布 D. 服从同一离散型分布