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Activity 2Fill in the blanks with the proper form of words given in the brackets.1. There have been calls for a new kind of security _______(arrange).2. We were most impressed with your __________(efficient).3. The manager spoke to them all __________(individual).4. The Chinese people maintain a strong cultural________(traditional).5. Keep your office space looking good, __________(particular) your desk.

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Activity 3Grammar: Fill in the blanks with the proper form of words given in the brackets.1. The man ________(stand) at the gate is my English teacher.2. They live in a room ________(face) the south.3. The girl ________(sit) under the tree is really charming.4. There are a few boys ________(swim) in the river.5. A man ________(live) in the village rarely sees subways.

设计时有两种方法可以减小凸轮机构的压力角:。

Listen to interview about the tips for freshman students. Match the name of the person with the tip given by the person.

妇女围绝经期变化的突出表现是

A. 卵巢功能衰退
B. 雌激素水平降低
C. 神经血管功能不稳定的综合征
D. 机体老化
E. 骨质疏松

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