晶体三极管的输出特性曲线可分为截止区、放大区和()三个区域。

题型:填空题

问题:

晶体三极管的输出特性曲线可分为截止区、放大区和()三个区域。

考点:通信电子计算机技能考试通信工(有线)通信工(有线)题库
题型:填空题
任务型阅读。
     Here is a survey about people's preference (偏爱) to shop. Some people were asked where they
preferred to shop.
     Eric is a doctor. He lives in a nice neighborhood with many small shops and restaurants. He likes the
friendly shop owners. He doesn't have a car, so shopping near his home is very convenient (便利的).
However, he says there are two main problems. First, things from the small shops cost more money.
Second, he can't find the books he wants to read in the small bookstore. He has to go to the big
bookstores downtown.
     Cathy is a mother of three children. She and her husband both work as teachers. They like to shop in
big supermarkets because they're clean and safe and prices are good there. Supermarkets have many
more kinds and sizes of products than small shops. Cathy says supermarkets also have disadvantages.
For example, they're always crowded during holidays, and they're so big that children can easily get lost
in them.
     Tony is a student who prefers to shop on the Internet. He thinks the main advantage is that he can
shop anytime he likes, even late at night. And he can buy fascinating things from all over the world. The
biggest worry is security (安全保障) for the Internet shop. Last year, his credit card number was
stolen (窃取). Also, once he paid for some things and never received them.
根据短文内容,将下面表格中的信息补充完整。
Eric
Cathy
Tony
Where to shop
In the small shops in his
neighborhood.
In big supermarkets.
__4__.
Advantages

The shop owners are __1__
and shopping near his home  
is very convenient.
They're clean and safe
and prices are good.
He can shop anytime
he likes, and buy things
from __5__.
  Disadvantages
Things from the small shops
_ 2     and the small bookstore
doesn't have the books he likes.
They're always __3__ during
holidays and children can get
lost in them.
Credit card numbers may
be stolen. Sometimes
people couldn' t get the
things they've ordered.
题型:填空题

下列各项中,两种量成反比例关系的是(  )

A.正方形的周长和边长

B.路程一定,时间和速度

C.4x=5y

D.圆的半径和它的面积

题型:填空题

下列属于金融市场发展对商业银行的挑战的是( )。

A.对银行资产和负债的价值影响会不断加大

B.银行风险管理难度会加大

C.会放大银行的风险事件

D.会减少银行的资本来源以及优质客户的流失

题型:填空题

颅内良性肿瘤出现钙化常见于()

A.胆脂瘤

B.颅咽管瘤

C.垂体瘤

D.少突胶质细胞瘤

E.脑膜瘤

题型:填空题

患者,女性,30岁,外阴瘙痒伴 * * 分泌物增多1周。妇科检查: * * 黏膜发红、水肿,上覆白色片状薄膜。该患者首选的治疗方案为()

A.使用碱性液体冲洗 * * 可提高疗效

B.局部用药可达治愈

C.局部及全身同时用药效果最佳

D.症状消失后复查 * * 分泌物转阴即可停药

E.男方不易感染,无需用药治疗

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