用户可通过以下哪种方式进行手机报的业务办理（） A.手机上网 B.短信 C.自有营业

Read and write.

1. A:                                                ?

    B: Sarah is 12 years old.

2. A:                                                ?

    B: There are 4 seasons in a year.

3. A:                                                ?

    B: I feel sick.

4. A:                                                ?

    B: I visited my teacher last weekend.  

5. A:                                                ?

    B: Mike is watering the flowers.

6. A:                                                ?

    B: She watched TV yesterday.

7. A:                                                ?

    B: I have a fever.

8. A:                                                ?

    B: I'm 167 cm tall.

9. A:                                                ?

    B: I played football last Sunday.

10. A:                                                ?

      B: Yes, I have a cold.

初产妇，妊娠足月。入院时：临产2小时、枕右前、胎心140次/分，宫口开大4cm；2.5小时后再次肛诊检查宫口扩张无进展。本病例恰当的诊断是（）

A.潜伏期延长

B.活跃期延长

C.活跃期停滞

D.第二产程延长

E.第二产程停滞

下列关于激素的说法不正确的是

A．激素是由内分泌腺的腺细胞分泌的

B．激素对生命活动起重要调节作用

C．激素的含量少，作用大

D．腺体所分泌的物质都属于激素

在长度为n的线性表中顺序查找元素x时，查找成功的平均查找长度为______。