Which president was Tomas Jefferson of the United States?
A. The first president.
B. The second president.
C. The third president.
D. The fourth president.
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WhendoesChrismentiontheDeclarationofIndependenceforthefirsttimeinthemovie The Pursuit of Happyness?
A. Whenheismakingaphonecalltohiswife.
B. Whenheisworking.
C. Whenheissellingthemachine.
D. Whenheismeetinghisclient.
WheredoesChrisfindthemisspellingword“happyness”in the film The Pursuit of Happyness?
A. Onthewallofhiscompany.
B. Onthewallofhisapartment.
C. Onthedoorofhisapartment.
D. Onthewallofhisson’sdaycarecenter.
下列关于淋巴细胞的描述错误的是（ ）
A. 血液中主要为小淋巴细胞
B. 胞质嗜酸性
C. 胞质中含有大量游离核糖体
D. 血液中无大淋巴细胞
E. 小淋巴细胞胞质少
具有自然杀伤能力的细胞是（ ）
A. B细胞
B. 中性粒细胞
C. 嗜酸性粒细胞
D. NK细胞
E. 单核细胞
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