All of the following pairs of sounds except ______ are distinguished from each other by the feature "+voiced".
A. /p/ and /b/
B. /t/ and /d/
C. /k/ and /g/
D. /m/ and /n/
查看答案
The reason some children are backward in speaking is that ______.
A. they are unable to learn language rapidly
B. their mothers are not clever about a child
C. their mothers respond inadequately to their attempts to speak
D. they are exposed to too much language at once
According to Stouffer, why were GIs much more friendly towards their officers in combat
A. Because they were afraid of being assigned dangerous tasks.
Because they could release their pent-up frustration against the enemy.
C. Because they were more like equals and friends in face of enemy.
D. All of the abov
沥青碎石的常用厚度为( )mm。
A. 20～40
B. 50～70
C. 60～70
D. 40～50
Which is the author's suggestion about vegetable gardening
A. One should have a large garden near home.
B. There should be fewer trees around the garden.
C. All gardening tasks should be done in spare time.
D. A small garden should be better-planned than a larger one.
微信支付 
支付宝支付