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【单选题】
最基本的随机抽样方法是( )。A.
分层抽样
B.
系统抽样
C.
简单随机抽样
D.
整群抽样
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【单选题】Directions: Identify the fragment in each selection. If the selection contains no fragment, select "Correct." a. To prepare for the 10K race. b. Eric eliminated greasy foods from his diet and began ea...
A.
a
B.
b
C.
c
D.
Correct
【单选题】Identify the fragment in each selection. If the selection contains no fragment, select "Correct."
A.
To prepare for the 10K race.
B.
Eric eliminated greasy foods from his diet and began eating fresh fruits and vegetables.
C.
He also began getting at least eight hours of sleep every night.
D.
Correct
【单选题】国民党所实行的是代表地主阶级、买办性的大资产阶级利益的一党专政和军事独裁统治。1928年10月,国民党中央常务委员会通过()文件,规定“由中国国民党全国代表大会代表国民大会,领导国民行使政权”;其全国代表大会闭会时,“以政权付托中国国民党中央执行委员会执行之”;指导监督国民政府重大国务之施行,由中国国民党中央以“政治会议行之”。这样,北洋政府时期还在形式上存在的议会制度也被彻底废除了。
A.
《军政纲领》
B.
《训政纲领》
C.
《宪政纲领》
D.
《民主纲领》
【多选题】Directions : Read the following passage and select a suitable word for each blank from the word bank. Write down the corresponding letter for each item in the blank. Each word can be used only once. D...
A.
attention span
B.
art form
C.
cultivation
D.
dedication
E.
fulfill
F.
grudge
G.
gardening
H.
inactivity
I.
insult
J.
pointless K. pastime L. scatter M. specially N. toils O. understandable
【多选题】The nurse is reinforcing education with the parents of a 2-year-old child about diet choices to promote growth. The family observes a strict vegan diet. Which of the following statements by the nurse ...
A.
"Diets consisting of legumes as the only protein source are sufficient for growth."
B.
"It is important to feed your child fortified breads and cereals to help with iron intake."
C.
"Preparing meals with vegetables and fruits will ensure sufficient vitamin B12 intake."
D.
"Try to pair foods high in iron with foods high in vitamin C to aid iron absorption."
E.
"Your child may require calcium and vitamin D supplementation due to lack of dairy intake."
【简答题】(1)定义一个 Person类,它包括的属性有“姓名”和“性别” (2)为Person类派生出一个子类Student类,为Student子类添加两个属性年龄和成绩等级,在子类中打印出学生的姓名、性别、年龄及成绩等级。
【简答题】定义一个Person类，属性（姓名、性别、年龄），方法（构造、说话、跑步），再定义一个子类Student，继承Person类，完成父类方法的调用。
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