— Why isn't Cathy here yet? — She______t

题型:选择题

问题:

— Why isn't Cathy here yet?   

— She    ______    to be picked up at the station.

A.could wait

B.must wait

C.might be waiting

D.can be waiting

考点:虚拟语气情态动词
题型:选择题

已知a,b是实数,且b2+(4+i)b+4+ai=0(其中i是虚数单位),则|a+bi|的值是______.

题型:选择题

Christmas is a season to spread joy. Can we spread this joy by caring a little more about nature and going green? Here are some good ideas.

Reduce the use of the decorative(装饰) lights. Make use of the eco-friendly(环保的)lights on the market. In this way you can save electricity.

Reuse the wrapping (包装)paper to wrap the gifts. You don’t need to buy new wrapping paper every year. Also try using the same small decorations for your Christmas tree.

Recycle(循环利用)all those decorations that your can not use any more. You can send out Christmas cards made from recycled paper. It’s a thoughtful way of going green for Christmas.(1)There are many charities selling these cards made from recycled paper.

There are some other ideal ways to go green for Christmas.

(2)You can _______ Christmas gifts by _________.You needn’t go to shops to buy presents for your family and friends. Homemade Christmas chocolates, handmade soft toys, homemade candles are wonderful.

If you have no time for gifts, you can also invite your family and friends over to have a home cooked meal. They can even help you with the cooking. This can make your relationship stronger.

Let’s use these green Christmas ideas to celebrate an eco-friendly Christmas!

1.将(1)句译成中文。

2.在(2)句的空白处分别填入一个适当的词使句意完整、上下文通顺。

3.回答问题:Why do we use the eco-friendly lights for Christmas?

4.在文中找出与This can help improve your relationship.意思相近的句子,并将它写在答题卡上。

5.在文中找出最能表达该短文主题的句子,并将它写在答题卡上。

题型:选择题

一般真菌在葡萄糖蛋白胨琼脂培养基中的温度为()

A.20℃

B.25℃

C.30℃

D.37℃

题型:选择题

某风力发电机组,其年有效风时数为7000h,风力发电机实际的工作系数为0.92,该机平均数出功率是额定功率750KW的30%,求该机型的年发电量?

题型:选择题

近体诗的格律包括哪些方面?

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