动作规格是根据武术运动不同拳种的（）对动作准确性提出的具体要求。

如图所示，两条平行光滑金属导轨，间距d=0.2m．导轨在桌面上的部分是水平的，水平部分处在磁感应强度B=0.1T、方向竖直向下的有界匀强磁场中，电阻R=3Ω，桌面高H=0.8m，金属杆ab质量m=0.2kg、电阻r=1Ω，在导轨上距桌面h=0.2m高处由静止释放金属棒ab，ab沿导轨滑下后落地点距桌面左边缘的水平距离s=0.4m，g取10m/s²，求：

（1）金属杆刚进入磁场时，R上的电流大小和方向；

（2）整个过程中R上放出的热量．

银监会对原国有商业银行和股份制商业银行进行评估的指标不包括( )。

A．经营绩效类指标

B．风险可控类指标

C．资产质量类指标

D．审慎经营类指标

Young Jack moved to a new house. When entering his new bedroom, he saw that it was full of toys but it was tidy. That day he played all he liked, but went to bed without tidying up.

The next morning, when Jack got up, he found all the toys had been put back in their proper places. He was sure that no one had entered his bedroom, but the boy didn’t pay much attention to it. The exact same thing happened that day, and the next day. But on the fourth day when he went to get his favourite toy, the toy jumped out of his hands and said, “I don’t want to play with you!”

Jack felt surprised, but the same happened with every toy he touched. Finally, one toy said to him:

“We don’t want to play with you. You always leave us so far away from our proper places. You don’t know how arduous it is for us to climb back up onto the shelves, or jump into the box. We feel most uncomfortable and unhappy. You don’t know how uncomfortable and cold the floor is! We don’t play with you any more if you don’t promise to leave us in our proper places before you go to bed.”

Jack remembered how comfortable he felt in his bed and how bad he felt when he had once slept in a chair. He realized how badly he had treated his friends, the toys. He asked for their forgiveness(原谅)， and from that day on he always put his toys nicely in their proper places before he got into bed.

小题1:when Jack moved into his bedroom,           .

A．it needed to be cleaned

B．he found lots of toys

C．he brought lots of toys

D．he put away his toys小题2:Why did all the toys refuse to play with Jack?

A．because he always broke them.

B．because he didn’t like them any more.

C．because he only played with his favourite one.

D．because he did’t put them in their proper places.小题3:The underlined word “arduous” in Para.4 probably means         .

A．difficult

B．easy

C．regular

D．useful小题4:The purpose of the text is to tell us that          .

A．we should have a good sleep

B．we should be fair to every friend

C．we should treat our friends well

D．we should always keep our rooms tidy

石材的吸水性与（）有关。

A.孔隙率

B.孔隙特征

C.软化系数

D.抗压强度

某患者临床表现为周期性深呼吸、疲乏感，动脉血气结果：pH=7.36，SB=20mmol／L，AB=19mmol／L，PCO₂=30mmHg，BE=-5mmol／L，考虑为（）

A.代偿型代谢性酸中毒

B.代偿型呼吸性酸中毒

C.代偿型呼吸性碱中毒

D.代偿型代谢陛碱中毒

E.无酸碱平衡紊乱