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【单选题】
下列关于 Ct 值的描述,错误的是A.
是扩增曲线与阈值线的交叉点处相应的反应循环数
B.
可以根据 Ct 值的大小估计模板的初始量
C.
Ct 值大小与模板量成正比， Ct 值越大，模板量越多
D.
Ct 值大小与模板量成反比， Ct 值越小，模板量越多
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【单选题】Campfires twinkled on the beaches and along the causeways near Cape Kennedy. Nearly a million people had come to watch the launch of Apollo 11. Many had sweated in bumper-to-bumper traffic from Cocoa ...
A.
It is a story told by one of the flight crew of Apollo 11.
B.
It is a news report filed by a correspondent on the spot.
C.
It is a diary written by a member of the liftoff team.
D.
It is a written statement presented to NASA
【单选题】Campfires twinkled on the beaches and along the causeways near Cape Kennedy. Nearly a million people had come to watch the launch of Apollo 11. Many had sweated in bumper-to-bumper traffic from Cocoa ...
A.
It is a story told by one of the flight crew of Apollo 11.
B.
It is a news report filed by a correspondent on the spot.
C.
It is a diary written by a member of the liftoff team.
D.
It is a written statement presented to NASA
【简答题】《爱莲说》的作者是司马光。( )
【简答题】周敦颐《爱莲说》中“__________，________________”道出荷花庄重质朴、洁身自好、不落尘俗的品格。
【多选题】经纬仪水平角观测需注意的事项是()。
A.
仪器脚架踩实、高度适宜、连接牢固
B.
精确对中与整平
C.
照准标志竖直
D.
记录清楚,不得涂改,有误立即重测
E.
n个测回观测水平角时,各测回间应变换水平度盘起始位臵的计算公
【多选题】经纬仪水平角观测需注意的事项是()。
A.
仪器脚架踩实、高度适宜、连接牢固
B.
精确对中与整平
C.
照准标志竖直
D.
记录清楚,不得涂改,有误立即重测
E.
n个测回观测水平角时,各测回间应变换水平度盘起始位臵的计算公
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