患者，男性，49岁，因劳累后胸痛3年收住入院，患者均于劳累当时发作，休息后5～10分

补全对话 （5 分）

A: Hello, may I speak to Miss Chen？

B: This is Chen Fang. Is that Yang Hui?

A: Yes, I called you yesterday afternoon. But you were not 小题1:        

B: Was it very important?

A: No, I just wanted to invite you to the new science museum.

B: Oh, what a 小题2:       ！What did you see in the museum?

A: A lot of wonderful things. They were all invented hundreds of years ago. By the way, are you

小题3:        this afternoon?

B: Yeah, what’s 小题4:_____？.

A: There’s a new seafood restaurant at Zhongshan Road . Let go and have some together.

B: OK! Seafood is my favorite food. When shall we meet?

A: How about twenty past six , in front of the restaurant?

B: All right. Let’s 小题5:_________it six twenty. See you then.

仔细观察下面的鸟卵结构图，回答问题：

(1)在该结构中，[ ]________将发育成小鸟。

(2)为鸟的胚胎发育提供营养的是[ ]______和[ ]_______。

(3)标号[6]是________，为胚胎发育提供_________。

(4)你认为卵壳上会有小气孔吗？______，请你设计一个实验来检验你的猜想。___________。

使用氧气—乙炔焊接设备，焊接完毕后，关闭焊枪上的调节阀门时，应（）。

A、先关闭乙炔气阀门，后关氧气阀门

B、先关闭氧气阀门，后关乙炔气阀门

C、同时关闭乙炔气阀门和氧气阀门

D、及时关闭两个阀门，但无顺序要求

关于脊髓亚急性联合变性出现双下肢瘫，错误的是：（）

A.肌张力增高

B.腱反射亢进

C.行走不稳

D.步态蹒跚

E.病理反射通常阴性