关于痰的性状和痰量正确的描述为（） A.痰的性状可分为黏液性、浆液性、血性和乳糜性

阅读理解。

     Mr. and Mrs. Clarke were going to America for their holidays. They had a dog called Billy.

They liked him very much. But they couldn't take him to America with them. So they found a place

to leave him while they were away. At the end of their holidays they got back to England very late

at night so they didn't go to get Billy. The next morning Mr. Clarke got into his car and drove happily

to get Billy. When he got home with the dog he said to his wife, "Dear, I don't think Billy has enjoyed

his days at that place. He made lots of noise all the way home. I guess he must want to tell me

something!" Mrs. Clarke looked at the dog carefully and answered, " You are quite right, dear, but

he wasn't trying to tell you he hadn't enjoyed his day at that place. He was trying to tell you that you

had brought the wrong dog home. That isn't our Billy."

1. Mr. and Mrs. Clarke were going to America_____.

A. to meet their friends    

B. to see their family    

C. to spend their holiday

2. Mr. Clarke drove to get Billy back______.

A. as soon as they came back

B. late at night

C. the next morning

3. Mr. Clarke thought that Billy ____ at that place.

A. had a good time.  

B. didn't have a good time  

C. liked to made noise

4. Mrs. Clarke found that ____.

A. her husband was quite right.  

B. the dog was Billy  

C. her husband had brought the wrong dog home.

5. Which of the following is right?

A. Mr. and Mrs. Clarke loved Billy very much.

B. Billy really enjoyed himself while they were away.  

C. Mr. Clarke brought their own dog home.

工业上常用Na制备钛、钽、铌、锆等。如制钛，常有如下操作步骤，请完成其中的问题：

(1)用90%浓H₂SO₄溶解钛铁矿(FeTiO₃)，反应方程式为：

FeTiO₃+3H₂SO₄FeSO₄+Ti(SO₄)₂+3H₂O

在除去不溶性杂质后，结晶析出FeSO₄·7H₂O时，为保持较高的酸度不能加水，其原因可能为　　　　　。

A．防止Fe²⁺被氧化

B．防止Ti(SO₄)₂水解

C．减少FeSO₄·7H₂O的溶解量 

D．减少Ti(SO₄)₂的溶解量(2)在除去杂质后，又需加大量水稀释以降低酸度，同时加热以生成TiO(OH)₂沉淀，过滤，将TiO(OH)₂热分解即得钛白粉(TiO₂)。除杂后加水稀释和加热的目的是_________________。 (3)在高温HCl气流中，TiO₂可转化为TiCl₄，反应方程式为　　　　　　。

(4)将TiCl₄与Na共熔即得Ti，反应方程式为　　　　　　　　　　，若用TiCl₄溶液与Na反应制Ti，则不能达到预期目的，原因是　　　　　　　　　　。

急性失血量最高为体重的多少时，机体能代偿（）

A.5%

B.10%

C.15%

D.20%

E.25%

复发性唇疱疹的治疗，最有效的是局部使用（）

A.氢化可的松乳膏

B.新霉素乳胶

C.0.01％硫酸镁湿敷

D.5％无环鸟苷软膏

E.杆菌肽软膏

甲、乙、丙共同出资设立一有限责任公司，其中甲以机器设备作价出资10万元。公司成立后又吸收丁入股。后因公司拖欠巨额债务被诉至法院。法院查明，甲作为出资的机器设备出资时仅值5万元，甲现有可执行的个人财产为3万元。下列处理方式中，符合公司法律制度规定的是( )。

A．甲以现有财产补交差额，不足部分待有财产时再补足

B．甲以现有财产补交差额，不足部分由乙、丙补足

C．甲以现有财产补交差额，不足部分由乙、丙、丁补足

D．甲无须补交差额，其他股东也不负补交差额的责任