According to Mike Wallace, there will be fewer problems, ______.
A. if young condors are taught not to eat so much carrion
B. if the chicks are kept in cave-like nest boxes for five months
C. if young condors can learn appropriate behavior. from older birds
D. if the chicks can have older birds for company when they hatch
查看答案
A．It is very near his working place.B．It is a rather crowded residential area.C．It is
A. It is very near his working place.
B. It is a rather crowded residential area.
C. It is convenient for transportation and shopping.
D. It is the only good position he has in mind.
3层混凝土强度等级()。
A. 偏高
B. 偏低
C. 不变
D. 无法确定
Which of the following statements is TRUE according to the passage？
A. The US is a land where brains, energy and ambition are what counts.
B. Inequality persists between whites and blacks in financial gains.
C. Middle-class families earn slightly less with inflation considered.
D. Children in lowest-income families manage to climb a single rung of the ladder.
小蜂窝可先用水冲洗干净，用()水泥砂浆修补。
A. 1:1
B. 1:2
C. 1:3
D. 1:4
微信支付 
支付宝支付