Directions: Complete the following passa

题型:填空题

问题:

Directions: Complete the following passage by using the words in the box. Each word can only be used once.
Note that there is one word more than you need.
A. honoured            B. set           C. historic           D. secretly           E. citizen  
F. granted           G. route           H. briefly          I. restoration          J. leading
     Frederick Douglass was an escaped slave in the movement that fought to end slavery in the United Stales.
He became a 1______ voce in the yean before the Civil War.
     A few weeks ago, the National Park Service (NPS) 2______ Douglass's birth and Black History Month with
the reopening of his home at Cedar Hill, a 3______ site in Washington. D.C. The two-story house, which c
ontains many of Douglass's personal possessions, had undergone a three-year 4______. (Thanks to the NTS
website, however, you don't have to live in the nation's capital to visit it. Take a tour online.)
     He was born Frederick Augustus Washington Bailey to a slave mother and a white father he never knew.
Douglass grew up to become the first black 5______ to bold a government office-as US minister and consul
general (总领事) to Haiti.
     As a youth, he never went to school. Educating slaves was illegal in the South, so be 6______ taught himself
to read and write. At 21 years old, he escaped from his slave owner to Massachusetts and changed his last name
to Douglass, to hide his identity.
     In the 1850s, Douglass was involved with the Underground Railroad, the system 7______ up by antislavery
groups to bring runaway slaves to the North and Canada. His home in Rochester, N.Y. was near the Canadian
border. It became an important station on the 8______, housing as many as 11 runaway slaves at a time.
     He died in 1895. In his lifetime, Douglass witnessed the end of slavery in 1865 and the adoption of the 15th
Amendment to the US Constitution (美国宪法修正案), which 9______ African-Americans the right to vote.
考点:人物传记类阅读
题型:填空题

下列关于数据库对象的描述,错误的是()。

A.存储过程、函数均可接收输入参数

B.触发器可以在数据更新时被激活

C.域可以由用户创建,可以加约束条件

D.一个关系可以有多个主码

题型:填空题

近年来,乳酸成为人们研究的热点之一,乳酸在医药、食品等工业应用前景广阔.乳酸的化学式为C3H6O3,计算:乳酸中各元素的质量比______.

题型:填空题

男,37岁,有癫痫病史,检查见牙龈增生覆盖牙冠的1/2,袋深4~6mm,前牙有移位

最可能与该患者牙龈增生有关的是

A.苯妥英钠

B.环孢菌素

C.消心痛(硝酸异山梨酯)

D.硝苯吡啶

E.利血平

题型:填空题

为了防止三绕组自耦变压器在高压侧电网发生单相接地故障时,()出现过电压,所以自耦变压器的中性点必须接地。

A.高压侧

B.中压侧

C.低压侧

题型:填空题

在实验时,用一支药匙不能同时取用两种试剂。

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