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【单选题】
如图,大的胚乳外面环绕着一种特殊的细胞,叫糊粉层。种子萌发期间,糊粉层合成和释放水解酶,分解储藏在胚乳中的营养物质;而胚在萌发期间会产生赤霉素。科学家将大的胚除去,发现种子不能萌发,于是推测胚在种子萌发时的作用是产生赤霉素诱导糊粉层合成水解酶。为证实这个观点,需做的实验是( )
A.
向结构完整的种子中加入赤霉素,观察种子是否萌发
B.
向除去胚的种子中加入赤霉素,观察种子是否萌发
C.
向除去糊粉层的种子中加入赤霉素,观察种子是否萌发
D.
向同时除去糊粉层和胚的种子中加入赤霉素,观察种子是否萌发
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举一反三
【单选题】Why would the woman like to have a Chinese name?
A.
She is taking a Chinese class.
B.
She will be working in China.
C.
She has made some Chinese friends.
【单选题】Why do Chinese tend to ask for a favor in an inexplicit way?
A.
Because Chinese culture is low context culture.
B.
Because Chinese culture is a high context culture.
C.
Because Chinese would like to communicate in a direct way.
D.
Because Chinese would like to communicate with explicit statement.
【单选题】Why is it important to eat noodles at birthdays for Chinese people?
A.
Noodles are long, which is a symbol of longevity.
B.
Long noodles are pronounced changmian i n Chinese, which means “long face”. Long face was a sign of longevity in ancient China.
C.
Birthday noodles are long and thin. Their Chinese pronunciation is changshoumian. The first two syllables ( changshou ) have the same pronunciation as the word longevity in Chinese.
【单选题】-- does Cindy want to learn Chinese? --Because she studies in a Chinese school. [     ]
A.
How
B.
Why
C.
When
D.
What
【单选题】What is the most important message from the story of Oedipus? (俄狄浦斯故事中表达的最重要信息)
A.
Human's strong willpower is very important in diffiulties.
B.
Gods help those who help themselves.
C.
It's impossible for a mortal to go against his destiny.
D.
Killing one's father and marring his mother is a great sin.
【多选题】医学电子仪器的漏电流主要分为。
A.
仪器漏电流
B.
外壳漏电流
C.
患者漏电流
D.
对地漏电流
【判断题】专业性较强的比赛尽可能请班主任担任裁判
A.
正确
B.
错误
【多选题】视光仪器设备中,主要分为哪几种?
A.
眼科临床诊疗仪器
B.
屈光检测仪器
C.
视功能检测仪器
D.
接触镜参数检测仪器
E.
眼镜参数检测仪器
F.
激光治疗仪器
【单选题】诊断试验的指标可分为客观指标,主观指标和半客观指标,下列哪项属于主观指标( )
A.
能用客观仪器测定的指标
B.
很少依赖诊断者的主观判断
C.
用体温计测定体温
D.
用X线片观察肺部或骨骼病变等
E.
疼痛、乏力、食欲不振等主诉
【多选题】眼视光仪器设备中,主要分为哪几种?
A.
眼科临床诊疗仪器
B.
屈光、视功能检测仪器
C.
低视力检查专业仪器
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