从学校去劳动基地，张明要走5分钟，李亮要走6分钟，两人的速度之比是5：6．___

加油站应张贴的标志是（　　）

A．

B．

C．

D．

用所给形容词的正确形式填空。

1. Dave is one of _________ (clever) students in our class.

2. Who is the __________ (heavy) of the two boys?

3. The dress isn't __________ (cheap) enough for me to buy.

4. What's __________ (bad) store in town?

5. Which has __________ (comfortable) seats, Town Cinema,

    Screen City or Movie Palace?

6. Mr. Wang is __________ (popular) than Mr. Green.

7. —What about this story?

    —Much __________ (interesting).

8. August is __________ (hot) month of the year.

9. —The digital camera is really cheap!

    —The __________ (cheap), the __________ (good).

    I'm short of money.

正常时肾皮质血流占肾血流量的（）

A.20%

B.30%

C.50%

D.60%

E.80%

商业企业物流的内容，主要包括（）。

A.采购物流

B.销售物流

C.厂内物流

D.商品退货物流

测量仪器每（）年要进行仪器鉴定

A.1年

B.2年

C.3年

D.4年