胃癌患者手术探查时发现盆腔肿块.后者来源多为（） A.直接蔓延 B.淋巴转移 C.血

用所给词的适当形式填空。

1. —How often _________ he _________?

    —He ________ twice a week. (exercise)

2. Maria ________ (hard) ever eats junk food.

    She _________ (have) a _________ (health) lifestyle.

3. My mother goes to the shop _________ (one) a week.

    She plays sports _________ (two) a day. 

    She goes to the movies three __________ (time) a month.

4. Tim likes doing some __________ (surf).

    He is a very good _________ (surf).

5. _________ (do) more exercise can help keep in good _________ (health). 

   It _________ (mean) it can help you stay __________ (health).

6. There are a few __________ (different) between __________ (they).

7. They are __________ (difference) from each other.

适用1年短期诉讼时效的情形是( )。

A．保管的仓储物毁损的

B．产品质量不合格造成财产损害的

C．环境污染致人损害的

D．拒付货款的

关于注射剂的灌封叙述错误的是

A．灌封室是灭菌制剂制备的关键地区

B．注入容器的量要比标示量稍多，易流动液体与粘稠性液体增加装量相等

C．封口规定用拉封

D．碱性药液或钙制剂通入惰性气体不能选择二氧化碳

E．我国已有洗、灌、封联动机

罗茨鼓风机的风量与出口的压强（）。

A、成反比例

B、成正比例

C、无关

D、有关系

护士在与患者沟通时，与患者目光接触的时间应该不少于全部交谈时间的（ ）。