补全对话。

S= Susan W=Wang Li

S: Which season do you like   1  , summer or winter?

W: I like   2   better.

S: Why?

W:   3   I like going swimming in the river.

S: I agree   4  you. I like summer,    5  . I think it is the  6   beautiful time of the year.

W: Do you also like to   7  ?

S: Yes,   8   that's not why I like summer  9  .

W: Why then?

S: Because we have  10   classes.

1._____2._____3._____4._____5._____

6._____7._____8._____9._____10._____

以下是衡量心电图机基线稳定性性能的重要指标，其中不正确的描述是（）。

A.电源电压稳定时，基线漂移不大于1mm

B.电源电压瞬态波动时，基线漂移不大于1mm

C.无信号输入时，基线随灵敏度变化，其位移不超过2mm

D.在5～40℃温度范围内，基线漂移平均不超过0.5mm

E.开机2分钟后，用标准灵敏度挡记录基线，其偏移水平应不大于2mm