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Week8 Unit2 Language Sense Enhancement1 1. Read aloud paragraphs 4 to 5 until you have learned them by heart.  Then try to complete the passage from memory. Yet this stop was only part of a much larger _________ (1) for me. Josiah Henson is but one name on a long list of _________________ (2) men and women who together ___________ (3) the Underground Railroad, a secret web of __________ __________ (4) and safe houses that they used to _____________ (5) slaves from the American South. Between 1820 and 1860, as many as 100,000 slaves traveled the Railroad to freedom. In October 2000, President Clinton _________________ (6) $16 million for the National Underground Railroad Freedom Center to ____________ (7) this first great civil-rights struggle in the U. S. The center is _______________ (8) to open in 2004 in Cincinnati. And it’s about time. For the heroes of the Underground Railroad remain too little remembered, their ______________ (9) still largely unsung. I was ___________ _______ (10) telling their stories.
A.
mission
B.
courageous
C.
forged
D.
escape routes
E.
liberate
F.
authorized
G.
honor
H.
scheduled
I.
exploits
J.
intent on
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【单选题】50mL 0.2mol/L AlCl3和50mL 0.1mol/L CaCl2溶液相混合后,Cl-的浓度是
A.
0.5mol/L
B.
0.4mol/L
C.
0.3mol/L
D.
0.2mol/L
【单选题】按经营主体不同,将批发商分为的类型不包括( )。
A.
独立批发商
B.
制造批发商
C.
共同批发商
D.
专业批发商
【单选题】下列不是非线性编辑平台的是( )。
A.
SGI工作站(主用计算机)
B.
机箱
C.
苹果公司的Macintosh机
D.
PC机
【单选题】下列不是非线性编辑平台的是()。
A.
SGI工作站(主用计算机)
B.
主机
C.
苹果公司的Macintosh机
D.
PC机
【单选题】specialty store
A.
a store where specilal kinds of
B.
a store where various
C.
a store where products
D.
a store where expensive
【简答题】蛋白质和核酸对紫外均有吸收,蛋白质的最大吸收波长是(    ),而核酸的最大吸收波长是(    )。
【简答题】(10分)在50mL硫酸和盐酸的混合溶液中,加入50mL 0.2mol/L氢氧化钠溶液,充分反应后恰好中和,然后加入足量的硝酸钡溶液,生成0.233g沉淀.计算混合溶液中硫酸和盐酸的物质的量浓度.
【判断题】只有一个手性碳原子的分子一定具有旋光性。( )
A.
正确
B.
错误
【单选题】刚上市的新产品苹果手机(iphone5),企业应采用的定价策略是 ( ) 。
A.
撇脂定价策略
B.
渗透定价策略
C.
满意定价策略
D.
差别定价策略
【单选题】核酸对紫外吸收的最大值时波长是()
A.
250nm
B.
260nm
C.
270nm
D.
280nm
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