16300上网卡使用方法有哪些？

女性，35岁，婚后5年未孕，2年来经血量增多，伴经期腹痛加重；妇科检查：后穹隆可及黄豆大小数个触痛性结节，子宫后位，略大，质中等，活动差，子宫右侧可及5cm×6cm×4cm包块，质韧，不活动，压痛

首先采用的辅助诊断方法是（）

A.输卵管碘油造影

B.基础体温测定

C.B超

D.腹腔镜检查

E.MRI

铀(U)常见化合价有＋4价和＋6价，硝酸铀酰[UO₂(NO₃)₂]加热可发生如下反应：UO₂(NO₃)₂UxOy＋NO₂↑＋O₂↑(化学方程式未配平)，在600 K时将气体产物集满试管，并倒扣水中，水充满试管。则上述分解反应生成的铀的氧化物化学式为

A．UO₂

B．UO·UO₃

C．UO₃

D．UO₂·2UO₃

语法填空

     One evening, I came across one of son's papers with a  failing grade.I almost started to yell his name    1   I suddenly  remembered he was in bed asleep.It was his   2    (nine)  year of school and his

academic career seemed to be in ruins, so  I was angry.But I put the paper aside and turned to the   3    

one, at the top of which were written "My dad".It was a poem   about me,   4   included the time I had to

leave work to take him to the hospital because he    5   (break) his finger.So careless was I   6   I had

forgotten all about that.He talked about how I wrestled with him in the evenings and    7   good many

other things.That paper was suddenly not nearly as  important as it had been a few minutes    8  .I don't

know if he planted the poem next to the failing grade to    9   (soft) the blow, but it worked.Instead of a

severe lecture, I talked to him about the poem as well as the failed homework, and it began to make

sense to me that I could include praise along   10   constructive criticism.

低压系统接地制式或按配电系统的不同组合分类，分为（）、TT、IT三种形式。

增量投资回收期( )基准投资回收期时，新方案可行。

A．大于或等于

B．大于

C．等于

D．小于或等于