烧成温度偏低，可能会使熟料中游离氧化钙增多。

患者，男性，25岁，口唇闭合时呈现口腔周围肌肉有紧张感。面中1／3前突，面下1／3高度偏大。Ⅲ度深覆，覆盖6mm，磨牙呈远中关系。∠ANB＝6°，∠FMA＝35°，上颌拥挤6mm，下颌无拥挤。

对此患者的矫治设计最可行的是（）

A.非拔牙

B.拔除双侧上颌第一前磨牙

C.拔除上颌第一前磨牙和下颌第一前磨牙

D.拔除上颌第一前磨牙和下颌第二前磨牙

E.以上都不是

How many coins have you got in your pocket right now?Three?Two?Or one?With a phonecard you can make up to 200 calls without any change at all.

1.What do you do with it?

Go to a telephone box marked “Phonecard”.Put in your card,make your call and when you've finished,a screen tells you how much is left on your card.It costs no extra for the cards,and the calls cast 10 per unit,the same as any other payphone call.You can put them in units of 10,20,40,100 or 200.

2.Now appearing in a shop near you

Near each card phone place you'll find a shop where you can buy one.They're at bus,train and city tube stations.Many universities,hospitals and clubs,restaurants and gas stations on the highway and shopping centers.At airports and seaports.

3.No more broken payphones

Most broken payphones are like that they've been vandalized（破坏了的）.There are no coins in Cardphone to excite thieves' interest in it.So you're not probably to find a vandalized one.Get a phonecard yourself and try it out.Or get a bigger wallet.

小题1:There are three sections in the passage.Which section do you think is about why phonecards are good?

A．Section 1.

B．Section 2.

C．Section 3.

D．Section 1&2.小题2:Choose the right order of the steps under“How to use a phonecard”.

a.Put in your phonecard.

b.Look at the screen to find out how many calls you can still make.

c.Go to a telephone box marked “Phonecard”.

d.Make your call.

A．a,b,c,d

B．c,a,d,b

C．a,d,c,b

D．c,d,a,b小题3:The last sentence “Or get a bigger wallet”means“_________”.

A．Phonecards are cheap

B．You cannot use all payphones

C．Thieves will not break card phones

D．People do not like carrying a lot of coins

下列表示种群相对密度的是( )

A．一亩地有20棵杨树
B．10只/hm²黄鼠
C．100个/hm²鼠洞
D．50ml水中有100个草履虫

国务院证券监督管理机构设( )，依法审核股票发行申请。

A．发行审核委员会

B．发行工作领导小组

C．专家组

D．财金委员会

有关内部审计师对经营性目标和目的所承担的作用包括：

A．批准经营性目标和目的，使之得以实现。
B．在管理层的目标和标准模糊时，寻求权威性的解释。
C．开发和执行控制程序。
D．完成预期的经营方案结果。