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【单选题】
What is the essence of public speaking?
A.
Showing
B.
Showing off
C.
Sharing
D.
Boasting
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【简答题】具有变态根的植物是________。 A马铃薯 B生姜 C大蒜 D红薯
【判断题】在生产实践中,发情周期是指从一次发情期的开始起,到下一次发情期开始之前一天止的这一段时间。
A.
正确
B.
错误
【单选题】According to some weather signs, if the groundhog sees its shadow and returns to its den, it means that ______.
A.
spring is round the corner
B.
spring is still far away
C.
the groundhog has been bribed
D.
the groundhog has not been bribed
【单选题】According to the passage, the sleep pattern of a baby is determined by
A.
its genes.
B.
its habit.
C.
its mental state.
D.
its physical condition.
【单选题】大蒜具有的变态有 。
A.
叶变态
B.
茎变态
C.
根变态
【判断题】将场效应管有字的一面朝自己,从左至右管脚分别为栅极( G)、漏极(D)、源极(S)。
A.
正确
B.
错误
【多选题】大蒜具有的变态有 。
A.
叶变态
B.
茎变态
C.
根变态
【单选题】与过敏反应产生有关的细胞是
A.
嗜酸性粒细胞
B.
巨噬细胞
C.
淋巴细胞
D.
肥大细胞
E.
中性粒细胞
【单选题】According to the speaker, the sleep pattern of a baby is determined by
A.
its genes.
B.
its habit.
C.
its mental state.
D.
its physical condition.
【单选题】患者女性,28岁。初孕妇,妊娠32周。有妊娠期糖尿病,估计胎儿重3500g,在门诊做B超检查。下列常用来估计胎儿大小的径线是
A.
双颞径
B.
双顶径
C.
枕颏径
D.
枕额径
E.
枕下前囟径
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