叶轮流道被冲蚀的麻窝深度不得超过，剩余壁厚不得小于原厚度的。（）A.1mm1/3 B

一根长绳左端位于平面直角坐标系的O点，t=0时某同学使绳子的左端开始做简谐运动，t=1s时形成如图所示波形。则该波的周期T=____________s，传播速度v=____________m/s。

（14分）在溶液中，反应A+2BC分别在三种不同实验条件下进行，它们的起始浓度分别为c(A)=0.100mol/L，c(B)=0.200mol/L，c(C)=0.000mol/L。反应物A浓度随时间变化如图所示。

请回答下列问题：

（1）实验③平衡时C的浓度为____________；

（2）与①比较，②和③分别仅改变一种反应条件。其中，②所改变的条件___________，

判断的理由是：__________________________________；③所改变的条件是_________。

（3）该反应的△H _____0，判断其理由是___________________________________________。

（4）下图表示实验①条件下达到平衡时，由于条件改变而引起反应速度和化学平衡的变化情况。若降温时，请把反应速度变化情况画在图中a~b处。

Wernicke失语患者病变的主要区域是（）

A.额下回后部

B.额下回前部

C.颞上回后部

D.颞上回前部

E.额上回后部

Teachers need to be aware of the emotional, intellectual, and physical changes that younga-duhs experience. And they also need to give serious (91) to how they can best (92) such changes. Growing bodies need movement and (93) , but not just in ways that emphasize competition. (94) they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (95) that comes from achieving success and knowing that their accomplishments are (96) by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (97) to plan activities in which there are more winners than losers, (98) , publishing newsletters with many student-written book reviews, (99) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide (100) opportunities for leadership, as well as for practice in successful (101) dynamics. Making friends is extremely important to teenagers, and many shy students need the (102) of some kind of organization with a supportive adult (103) visible in the background.
In these activities, it is important to remember that young teens have (104) attention spans. A variety of activities should be organized (105) participants can remain active as long as they want and then go on to (106) else without feeling guilty and without letting the other participants (107) This does not mean that adults must accept irresponsibility. (108) , they can help students acquire a sense of commitment by (109) for roles that are within their (110) and their attention spans and by having clearly stated rules.

A．if only

B．now that

C．so that

D．even if

提供单据处理主要包括单据管理、（）两部分。

A、单据录入

B、单据查询

C、单据处理