关于月经的临床表现，下述叙述正确的是( )A．初潮年龄大多数在16~18岁 B．正

某业务员招待客户，实际支付餐费1100元，却开出2400元的发票到单位报销，后被查出，应给这一职工的处罚是通报并处()。

A.3000元以上50000元以下的罚款

B.5000元以上10000元以下的罚款

C.3000元以上20000元以下的罚款

D.5000元以上10000元一下的罚款

读对话，回答问题。

Mary: What can you do, John?

John: I can cook the meals. What can you do?

Mary: I can make the bed, wash the clothes and use a computer.

John: I can use a computer, too. I have a sister. She is very little. But she can water the flowers.

Mary: Great! She is a good girl.

1. What can John do?

_____________________________________________________

2. Can Mary make the meals?

_____________________________________________________

3. What can Mary do?

_____________________________________________________

4. Who can use a computer?

_____________________________________________________

5. Can John's sister water the flowers?

_____________________________________________________

6. Is John's sister a good girl?

_____________________________________________________

分析网络经济对国际贸易理论的影响

在一个TDM/FDMA的VSAT网络中，如果不能满足业务量要求，以下那种说法正确（）.

A.增加多个TDM出站载波

B.增加时隙

C.增加信道

D.增加频率

设f(x)在(-∞，+∞)上具有二阶导数，且满足条件|f(x)|≤a，|f"(x)|≤b，其中a，b是两个正的常数，求证：[*]有
[*]