根据柯尔伯格的理论，处于服从和惩罚的道德定向阶段的个体的特征是（）。 A.对规则采取

The meat is _____dear and eating ____meat is bad for your health.

A．too much,much too

B．too much,too much

C．much too,too much

D．much too,much too

非终结符

By using MP3，a 600M-byte music CD can be (71) to 50M bytes or less．It can be streamed(downloaded in chunks)so that you can begin listening to the opening bars while the (72) ofthe life arrives in the background。And most important，MP3 music files retain good listening (73) that (74) compression schemes lacked．That (75) of features makes accessing anddistributing music on the Web practical for the first time．

A．amount

B．mass

C．quantity

D．quality

移动通信系统由哪几部分组成？

下列哪种气体可以使血液的运氧能力下降（）

A.联苯胺

B.CO

C.苯蒸气

D.CO₂

E.氯气