韦氏成人智力测验的2个分量表包括（）。 A.常识 B.言语 C.操作 D.数字符号

用所给词的适当形式填空。

1.  I love nature.  I love the _________ (nature) scenery.

2. Ben Iambert is going to_________ (Canada) Great Lakes.  He is_________   (leave) the first

      week in  June and staying until September.

3.  Don't forget _________ (bring) your homework tomorrow.

4.  The child can't wait_________ (go) to the park.

5.  Ben I.ambert is_________ (plan) _________ (spend) __________ (fish) and going bike_________ ( ride).

6． I'm thinking about _________ (go) to France.  I want to visit the Eiffcl Tower (艾菲尔

    铁塔).

7.  I want to go to a__________    (Europe) country on vacation.

8.  ---Did you finish _________  (write)a letter to your aunt?

    --Yes,I did.

9.  There are many_________ (tour) in Beijing every day.

10. The _________  (Italy) are friendly.

11.  -What are you doing this weekend?

    --Well, I'm going _________  (shop).

胚胎发育中哪个时期易发生心血管畸形（）

A.2～8周

B.9～16周

C.3～5个月

D.6～8个月

E.8个月以后

I don’t think he could have done such a stupid thing last night, _____?

A．did he

B．could he

C．do I

D．hasn’t he

图3-18卸荷回路进行分析，找出两者的区别，并作扼要说明。

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