采取工艺灭火时，常用的方法有（）种。 A.两 B.三 C.四 D.五

Mary likes to invent things. She creates a new language and teaches it to her friend, Jean. Mary and Jean like to talk to each other in their own language because they think no one understands them and it is funny. When they go shopping, they say things like: “Look! He is fat.” “This CD is awful.” “I want to eat free hamburgers.” A clerk comes but he can’t understand what they say. He asked them: “May I help you?” Mary and Jean just laugh. What fun it is to create something new.

小题1:Which is Mary’s invention?

A．Teaching her friend.

B．A new language.

C．Go shopping.

D．Making hamburgers.小题2:Why does Mary like speaking her new language with her friend Jean?

A．Because they can talk but no one knows what they say.

B．Because it’s easy to speak new language.

C．Because her friend Jean likes it.

D．Because she wants free hamburgers.小题3:What do they do in the store?

A．They buy some things.

B．They talk with the clerk.

C．They want to understand what people say.

D．They use their new language and talk about people and things.小题4:The clerk may think that ________, so he comes to help them.

A．maybe they need help

B．they talk about him

C．they laugh at him

D．they invent things小题5:According to the passage, creating something new is _____.

A．boring

B．interesting

C．hard

D．easy

在小烧杯A中加入20mL蒸馏水，滴入2～3滴紫色石蕊试液，得到的溶液呈紫色。在小烧杯B中加入20mL浓盐酸（盐酸是氯化氢气体溶于水形成的溶液）；用一只大烧杯把A、B两个烧杯罩在一起（如图所示）。过几分钟，看到烧杯A中的溶液变成红色。 

（1）你认为烧杯A中的溶液变红的原因可能有哪些？

假设1：_____________________；

假设2：_____________________。 

（2）请设计简单的实验，探究你的假设（简述操作方法）：

验证假设1的实验：________________________；

验证假设2的实验：________________________。 

（3）通过实验探究，获得的结论是_________________________。

病理改变可出现“双轨征”的是

A．微小病变肾病
B．系膜增生性肾小球肾炎
C．系膜毛细血管性肾小球肾炎
D．膜性肾病

詹森(Jensen)指数是通过比较考查期基金收益率与预期收益率之差来评价基金，即基金的实际收益超过它所承受风险对应的预期收益的部分。这里的预期收益率是由( )得出的。

A．资本资产定价(CAPM)

B．证券市场线(SML)

C．套利定价模型(APT)

D．资本市场线(CML)

编制投标报价时，下列工作应首先完成的是( )

A．审核工程量清单

B．编制施工方案或施工组织设计

C．熟悉招标文件和施工图等技术资料

D．现场踏勘