若x2+ax+b=（x+3）（x-4），则a=______，b=______．

由于多种因素的影响，地球在距今约22亿年到1万年间的漫长地质年代里经历了三次大冰期，分别为震旦纪大冰期、石炭一二叠纪大冰期和第四纪大冰期。大冰期之间为间冰期。读图，完成1~2题。

1、与地质时期气温反复变化无关的因素是[ ]

A、太阳活动

B、人类活动

C、下垫面

D、大气环流

2、有关冰期与间冰期的叙述，正确的是 [ ]

A、大冰期雪线下降

B、间冰期海面降低

C、大冰期全球自然带向两极方向推移

D、间冰期物种锐减

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项.

Everybody worries. Grown-ups do it and kids do it, too. But what should you do about it? Whether your worries are big or small, you can take these steps:

Figure it out.

小题1:That can make it tough to find out what the problem is or to pick one part of the problem to try to solve. But being able to focus on your problem—or at least part of it—is the first step to taking action.小题2:Think of ways to make it better.

There is almost always something you can do to help you feel less worried. Sitting there worrying is no fun and it probably won’t solve your problem.小题3:If your worry is about a fight you had with your friend, you might write down all the actions you could take—from writing the friend a note to inviting him or her over for a game of basketball. Once you have a list of possible actions, you can select the one that you think is most likely to get your friendship back on track.小题4:

Worrying can make you feel lonely. When you are worried, it can help to find someone to talk to. Sometimes people say, “Why should I bother? They can’t do anything about it.” But here is the reason to give it a try anyway:小题5:Just the act of telling someone what’s bothering you can make you feel a little better.

A．Ask for help.

B．Divide your problems into parts.

C．Worrying too much is bad for your health.

D．Some problems are big and have a lot of parts.E. Switching to immediate action can help you feel more hopeful.

F. If you are having trouble figuring out what worries you, get to the last step.

G. You don’t know that no one can help until you share your feelings and let someone try to help.

四周高、中间相对低平的地形为[ ]

A．平原

B．山地

C．盆地

D．高原

属于药物类药引的是（）

A.大枣

B.酒

C.茶叶

D.荷叶

E.蜂蜜

网点柜员在办理须核对客户有效证件业务时，当联网核查客户的居民身份证时结果为以下（）、（）或（）情形时，应要求客户出具户口簿、护照、机动车驾驶证等其他有效证件，进一步佐证，确属真实证件的，再继续办理业务。