在升压开始阶段，饱和温度在100℃以下时，升温速率不应超过（）。A､1.1℃/min

Dear Linda,

I’m glad to hear from you and I would like to be your pen friend. In your letter, you said you wanted to know something about my school life(生活).

I walk to school at 7:30 every morning because the school is near our house. When I get to school at about 7:45, I often do the cleaning with my classmates. After that we do some reading for half an hour. We have four lessons in the morning. I often have my lunch at 12:00 at school. We usually have two lessons in the afternoon. The school is over at about 5:00 and then I go home.

My favorite subject is Chinese. I like all the teachers because they are friendly. I am keen on sports and I enjoy playing football best. I’m a member of our school football team. What about your school life?

Best wishes!

Dick

小题1:It often takes Dick about _____ to walk to school every morning.

A．half an hour

B．15 minutes(分钟)

C．10 minutes

D．5 minutes小题2:After Dick gets to school, he _____ first.

A．does morning exercises

B．does some reading

C．has classes

D．does the cleaning小题3:How many classes does Dick usually have in a day?

A．Two.

B．Four.

C．Six.

D．Eight.小题4:How does Dick probably(可能地) go home?

A．On foot.

B．By bike.

C．By bus.

D．In Linda’s car.小题5:From the passage，we know that_____ .

A．Dick goes to school at 12:00 at noon

B．Dick doesn’t like studying Chinese

C．Dick’s favourite sport is playing football

D．Dick’s Chinese teacher is not friendly to him

氨气（NH₃）是一种重要的化工原料．

①NH₃由______种元素组成，1mol NH₃中约含有______个氢原子，其中氮元素的质量分数是______（精确到0.1%）．

②将NH₃通入滴加酚酞的水中，溶液变成红色，说明NH₃溶于水后溶液的pH______7

（填“＞”、“﹦”或“＜”）

某孕妇，平素月经周期规律，目前宫内孕32周，单胎。体检：子宫大小与妊娠月份相符，胎心135～160次／分，宫缩20分钟4次，每次持续35～40秒。 * * 检查发现有少量血性分泌物，宫口扩张达3cm，胎膜未破裂。对该孕妇的首要处理措施是（）。

A.人工破膜

B.抑制宫缩

C.灌肠

D.尽快终止妊娠

E.积极预防感染

保证清醒插管成功的关键是（）

A.恰当的气管导管弯度

B.良好的咽喉表面麻醉

C.对病人作好解释工作

D.环甲膜穿刺表面麻醉

E.完善的咽喉和气管内表面麻醉

马德隆畸形