海洋底栖植物生存于陆地与大洋之间的交界地 带,具有高生产力、栖息地类型多变、人类和 动物影响大等特点

【基本内容】 讲解 JavaScript中几种图片特效网页设计。 【教学要求】 学会设计网页的图片特效 一、案例设计: 通过不断刷新,网页中六张图片可以交替出现

4城市土壤与生物群落 4.1城市的土壤 1城市化对土壤的影响及城市土壤特点 城市发展与建设导致形成废墟式土壤这类土壤较利于植物根系伸展,但养分布不均;通气良好,但土体甚为干燥城市道路交通使其两侧土壤性质发生改变瓦砾、砖、砂、混凝土等建筑废料多pH值高,铅金属含量大,紧实度增加

作业一: 1.在立方晶系的晶胞内画出具有下列密勒指数的晶面和晶向: (11)n12,(10与[1],(132)与[123 2.在立方晶系的一个晶胞中画出(111)和(112)晶面,并写出两晶面交线的晶向指数。 3.立方晶系的(111),(110),(123)晶面族各包含多少晶面,写出它们的密勒指数

Revision of unit 6 工. Expressions Directions: Turn the following English terms into Chinese without /ooking at your textbook 1. Superior quality/inferior quality 2. Customary quality /ordinary quality

Revision l Expressions Directions: Turn the following English terms into Chinese without looking at your textbook 1 advance payment/ Cash in advance 2 defer payment 3 initial payment 4 Documentary letter of credit

Revision: I. Expressions Directions: Turn the following English terms into Chinese without looking at your textbook 1. market slump 2. market boom 3. market share 4. market fluctuations 5. strong market

Revision: I. Expressions Directions: Turn the following English terms into Chinese without looking

Revision L. Expressions Directions: Turn the following English terms into Chinese without looking at your textbook 1. Country of origin mark 2. Quality mark 3. Grade mark 4. Weight mark

Revision: Expressions Directions: Turn the following English terms into Chinese without looking at your textbook 1. skimming price 2. market price 3. basis price