题干

下列元素中,属于金属元素的是(  )

A:氖

B:氧

C:锌

D:磷

上一题 下一题 0.0难度 选择题 更新时间:2020-01-12 02:38:30

答案(点此获取答案解析)

C

同类题2

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    It is a Saturday morning.You have your breakfast,walk the dog,and then go to football practice on time.A few hours later,you return home,only to find that the dog has made your bedroom untidy.Your clothes are on the floor.____

    Before you get angry,you should stop and think.Your dog wasn't misbehaving(捣蛋)just for the fun of it.And he wasn't punishing(惩罚)you for leaving.____It's called separation anxiety(分离焦虑).

    Think of it this way:Dogs can't ask where you're going or when you'll back____ All they know is that they want to be with you.Since you're not there,they need to find you.Dogs may Suddenly develop separation anxiety.But with  practice and patience(耐心),you can teach your dog to be Comfortable being left alone.

    Put on your jacket,and then sit down.____After a while,walk out the door for 1 minute,then 2 and so on.Little by little your dog will learn that when you leave,you will return.

    ____

    ◎Teach your dog a word or that you use every time you leave,which tells your dog you'll be back

    ◎Before you leave,give your dog a toy.It will keep him busy while you're away.

根据材料内容从方框中选择恰当的句子填入文中空缺处,使材料内容完整、正确,其中有一个句子是多余的。

A.You can also try me following ways.

B.Your favourite sports shoes are in poor condition.

C.You'd better find someone to look after your dog.

D.They can't call you on the phone.

E.Open and close the door,and then sit down.

F.Some dogs just feel nervous when left alone.

同类题5

任务型阅读

    Happiness is not the absence of problems____Here are a few reminders to help motivate you when you need it most:

    ⒈Pain is part of growing.

    When times are tough, remind yourself that no pain comes without a purpose____ Every great success requires some type of worthy struggle to get there. Good things take time. Everything is going to come together; maybe not immediately, but eventually.

    ⒉____

    Every time it rains, it stops raining. Every time you get hurt, you heal. After darkness there is always light. So if things are good right now, enjoy it. It won't last forever. If things are bad, don't worry because it won't last forever either.

    ⒊Worrying and complaining changes nothing.

    ____ It's always better to attempt to do something great and fail than to attempt to do nothing and succeed. It's not over if you've lost; it's over when you do nothing but complain about it. If you believe in something, keep trying. Don't let the shadows of the past darken the doorstep of your future.

    ⒋Your scars are symbols of your strength.

    Never be ashamed of the scars life has left you with. A scar means the hurt is over and the wound is closed. It means you overcame the pain, learned a lesson, grew stronger, and moved forward____

A. Everything in life is temporary (暂时的).

B. But it is the ability to deal with them.

C. Rarely do people do things because of you.

D. A scar is the sign of a success to be proud of.

E. Those who complain the most, accomplish the least.

F. Move on from what hurt you, but never forget what it taught you.

G. Change because it makes you a better person and leads you to a brighter future.