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【简答题】
阅读短文,判断下列句子的正误 I'm Linda. I love music. I have music on Tuesdays and Fridays. This is my mother. She is an art teacher. She teaches art on Mondays, Wednesdays and Fridays. She often listens to music on Saturdays. She sings very well. On Sundays, she often plays the pipa in the park. My father is very hard-working. He often writes emails on Sundays. His boss is very strict.
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【简答题】苹果醋(ACV)是一种由苹果发酵而成的酸性饮品，具有解毒．降脂等药效，主要酸性物质为苹果酸。苹果酸在分离提纯后的化学分析如下：①相对分子质量不超过150，完全燃烧后只生成CO 2 和H 2 O，分子中C．H质量分数分别为 w (C)＝35.82％． w (H)＝4.48％；②1 mol该酸与足量的NaHCO 3 反应放出44.8 L CO 2 ，与足量的Na反应放出33.6 L H 2 (气体体积...
【简答题】Why does it grow at the middle of the peak? Hundreds of years have passed, but the puzzle still remains insoluble.
【单选题】Bronze ______ with ease or grow brittle quickly, as copper does.
A.
not bending
B.
does not bend
C.
that does not bend
D.
to not bend
【单选题】以下属于微博营销技巧的有 a 传递价值 b 微博个性化 c 连续发布 d 强化互动性 e 系统性布局 f 准确定位 g 提高企业博客专业化水平 h 有效控制 i 注重方法与技巧
A.
abcd
B.
bedef
C.
defghi
D.
abcdefghi
【单选题】In spite of his breakdowns, Bruce achieved a position of seniority and in due course retired with a______.
A.
pension
B.
earning
C.
salary
D.
donation
【单选题】What are the most dominant contributors to breakdowns and failures in negotiation?
A.
failures and distortions in perception, meaning, and feedback
B.
failures and distortions in perception, feedback, and behaviors
C.
failures and distortions in perception, communication, and framing
D.
failures and distortions in perception, cognition, and communication.
E.
None of the above contribute to breakdowns and failures in negotiation.
【简答题】化学就在我们身边．请运用所学的化学知识，回答下列问题； （1）铝及其化合物有广泛的用途．把一根用砂纸打磨过的铝丝浸入硫酸铜溶液中，反应的化学方程式是：___________________________________。砂纸的作用是____________________________。 （2）今年3月，我国出现了H7N9新型禽流感病例。科研部门自主研发出一种新药可用于治疗H7N9禽流感，它的...
【简答题】已知SO 2 和CO 2 都是非金属氧化物，两者的实验室制法和化学性质都具有一定的相似性．但SO 2 比CO 2 易溶于水，与水反应生成H 2 SO 3 ，H 2 SO 3 易与O 2 化合． Ⅰ．请写出H 2 SO 3 与O 2 化合的化学方程式______． Ⅱ．又知2Mg+CO 2 点燃 . 2MgO+C．某研究性学习小组用如图所示的装置进行镁与二氧化硫反应的实验． （1）甲装置用来制取SO...
【多选题】微信营销和微博营销的区别有( )
A.
微博推广范围大，微信推广深度高
B.
微博粉丝有所分类，微信粉丝定位更精准
C.
微博互动一般，微信互动形式多
D.
微博更适合品牌推广，微信适合老客户
【单选题】The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.
A.
concerns
B.
assumption
C.
occupations
D.
ignorance
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