下面是关于资本主义世界市场形成过程的图示,按照世界市场形成发展的顺序排列正确的是
A． ①②③④
B． ①④③②
C．④②①③
D．④①②③
答案：C
阅读短文，判断正(T)误(F)。
A happy family
It's a Saturday morning. The Brown family are in a park. Mr Brown sits on a bench with his wife. They
are talking and drinking. Tom is their son. He is thirteen years old. He is reading a book under a big tree. Kate is
Tom's little sister. She is only five. She is playing with her cat. It is a happy family.
( ) 1. There are four people in the Brown family.
( ) 2. The Brown family are in a park.
( ) 3. Mr and Mrs Brown sit on the grass.
( ) 4. Tom is playing with his friends.
( ) 5. Kate is playing with her cat.
计算钢筋工程量时，竖向钢筋的接头数按（）计算。
A.每6m长
B.每7m长
C.每8m长
D.自然层
