软化点试验时，软化点在80℃以下和80%：以上其加热起始温度不同，分别是______

阅读理解。

        For the last couple of weeks, I had been stuck in front of my computer working on a project that was

very important to me. My every waking hour was consumed by the project and although I imagined that I

would feel happy after completing parts of the project, I was confused to find that instead, I was feeling

rather depressed. I tried a range of methods to help cheer myself up. I had a relaxing bath, cooked a

delicious meal to enjoy with my family and even watched a lighthearted movie, but to no avail. It was only

when I turned to meditation(沉思)for a solution that the answer came to me: turn to nature!  

        The very next day, I grabbed my camera and a bottle of water and set off to spend a few hours

walking in a nature reserve, even though it was pouring with rain. Within a couple of minutes I felt alive

again. To be honest, I felt like a young school girl again and had to stop myself from hopping along the

path singing, "I'm singing in the rain", a song I used to sing when I was a child. I think as adults we often try

too hard to control our inner children and as a result we restrain(限制) our own spirits, which only leads to

depression and stress.    

        Interestingly, it has been shown that people who spend 40 minutes walking in a nature reserve have a

drop in their blood pressure levels, but this does not happen when they spend a similar amount of time

walking in a busy city centre.    

        If you feel a little low in spirit and know that you have spent too much time indoors, relax completely,

remove your shoes and let your inner child come out and play.

1. The author felt depressed because she __________.

A. couldn't consume her waking hour    

B. had not seen a film for a long time.

C. had not finished her work on time  

D. had worked on a hard job for too long

2. The author walked in a nature reserve in the rain in order to__________.

A. take photos                      

B. find a solution to the project

C. hop along the path              

D. cheer herself up

3. The underlined part "to no avail" in Paragraph 1 probably means " __________.".

A. unsuccessful        

B. unrelated

C. uninteresting    

D. unexpected

4. In the author's opinion, __________.

A. a bath can make people relaxed

B. depression is usually caused by hard work

C. walking in a busy city centre harms people's health

D. adults should express their inner feelings freely

5. The last paragraph mainly serves as a(n) __________.

A. explanation        

B. suggestion

C. introduction    

D. reminder

下面程序将片内RAM30H单元开始的______字节数据传送到片外RAM______开始的单元中去。
START： MOV RO，#30H
MOV R7，#0FH
MOV DPTR，#3000H
LOOP： MOV A，@R0
MOVX @DPTR，A
INC R0
INC DPTR
DJNZ R7，LOOP
RET

男，45岁。全口牙龈反复肿痛。检查：全口牙龈肿胀充血，明显，松动Ⅰ～Ⅱ度。袋深4～6mm，深袋内溢脓。全口牙颈部菌斑。牙石。X线片示，全口牙槽骨有不同程度的吸收。该病诊断为（）

A.青少年牙周炎

B.成人牙周炎

C.牙周牙髓联合病变

D.牙周脓肿

E.牙周创伤

为便于储存容器的安装和维修，减小灭火剂施放时的冲击力，应在容器阀和单向阀之间采用不锈钢管连接。