在横线里填上“＞”、“＜”或“=”．13______0.334.2时______

用所给词的适当形式填空。  

1. The red skin is            (small) than the blue one.

2. She _____ (go) to the cinema with her classmates tomorrow evening.

3. It's Children's Day. All the students are very ___     (excite).

4. Your classroom is on the             (four) floor (层). 

5. She wants          _ (buy) a new pen.

6. It often             (rain) in summer.

7. Sometimes they       _    (not have) lunch at home.

8. Look! The bus ___ __ (come).

9. He          _ (make) many cakes for his friends yesterday.

10.             (be) there any tea in the cup?

食用豆腐能获得人体所需的多种氨基酸，其中含量最多的是亮氨酸，其化学式为C₆H₁₃NO₂，根据以上信息，请回答下列问题：

（1）一个亮氨酸分子中含有______个原子．

（2）亮氨酸的相对分子质量为______

（3）亮氨酸中各元素质量比C：H：N：O为______．

固有程序型的电子手簿由厂方提供测量程序，只需按需要调用即可。( )

企业客户联动注册交易中企业客户注册是必选项，企业客户服务维护、企业账户注册、企业客户操作员注册及企业E-TOKEN绑定为可选项，柜员可根据客户提交申请资料的情况为客户在该交易中选择需要注册的相关服务内容。（）

线圈自感电动势的大小，正比于线圈中电流的变化率，与线圈中的电流的大小无关。