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【单选题】
从原始群体中选择优良单株,分别编号,分别播种,但株系间不进行隔离,自由授粉,这种选择方法叫做(( )。
A.
混合选择法
B.
单株选择法
C.
集团选择法
D.
母系选择法
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【单选题】If a small electric motor has been submerged in salt water for a short period of time, you should________.
A.
send it ashore for rewinding
B.
rinse it with warm fresh water and bake it dry in an oven
C.
soak it in a bucket of commercial solvent and bake it with internal beat
D.
clean it with carbon tetrachloride and blow it out with compressed air
查看完整题目与答案
【单选题】关于我国产品质量监督抽査制度,正确的是()。
A.
国家监督抽查的产品，地方可另外重复抽査；
B.
实施产品质量监督抽査，可以以明示采用的经过备案的企业标准作为判定产品质量的依据；
C.
实施产品质量监督抽査的产品质量不合格的，由实施监督抽查的产品质量监督部门予以公告；
D.
监督抽查所需的检验费用由企业支付
查看完整题目与答案
【单选题】If a small electric motor is immersed in salt water it should be _____. 1 washed in fresh wate 2 dried in an oven
A.
① only
B.
② only
C.
both ① and ②
D.
neither ① or ②
查看完整题目与答案
【单选题】If a small electric motor has been submerged in saltwater for a short period of time, you should _____.
A.
send it ashore for rewinding
B.
rinse it with warm freshwater and bake it dry in an oven
C.
soak it in a bucket of commercial solvent and bake with internal heat
D.
clean it with carbon tetrachloride and blow it out with compressed air
查看完整题目与答案
【简答题】2 Christmas lights were invented as a result of a near ly 1.__ tragedy. Before first electric tree lights were 2. ___ used, people used candles to decorate our trees . 3.____ The wax candles were not ...
查看完整题目与答案
【判断题】在设计的萌芽期,设计师/发明家占据更重要的比重。
A.
正确
B.
错误
查看完整题目与答案
【简答题】进给伺服电机编码器脉冲计数错误报警如何处理?
查看完整题目与答案
【简答题】If you look around the streets of London, you'll see the many methods people use to move around. With people on buses, the Tube, cars, motorbikes, bicycles and even roller skates, the roads are alread...
查看完整题目与答案
【单选题】It is reported that bags are getting bigger all the time, and that there are more bags per person on the street today than at any other time in history. If this is ture, possible explanations could in...
A.
The history of the bag rules.
B.
The importance of using libraries.
C.
Different bags used in our daily life.
D.
The use of bags and the rules against it.
查看完整题目与答案
【单选题】关于我国产品质量监督抽查制度，正确的是（ ）。
A.
国家监督抽查的产品，地方可另外重复抽查
B.
实施产品质量监督抽查，可以以明示采用的经过备案的企业标准作为判定产品质量的依据
C.
实施产品质量监督抽查的产品质量不合格的，由实施监督抽查的产品质量监督部门予以公告
D.
监督抽查所需的检验费用由企业支付
查看完整题目与答案
相关题目：
【单选题】If a small electric motor has been submerged in salt water for a short period of time, you should________.
A.
send it ashore for rewinding
B.
rinse it with warm fresh water and bake it dry in an oven
C.
soak it in a bucket of commercial solvent and bake it with internal beat
D.
clean it with carbon tetrachloride and blow it out with compressed air
查看完整题目与答案
【单选题】关于我国产品质量监督抽査制度,正确的是()。
A.
国家监督抽查的产品，地方可另外重复抽査；
B.
实施产品质量监督抽査，可以以明示采用的经过备案的企业标准作为判定产品质量的依据；
C.
实施产品质量监督抽査的产品质量不合格的，由实施监督抽查的产品质量监督部门予以公告；
D.
监督抽查所需的检验费用由企业支付
查看完整题目与答案
【单选题】If a small electric motor is immersed in salt water it should be _____. 1 washed in fresh wate 2 dried in an oven
A.
① only
B.
② only
C.
both ① and ②
D.
neither ① or ②
查看完整题目与答案
【单选题】If a small electric motor has been submerged in saltwater for a short period of time, you should _____.
A.
send it ashore for rewinding
B.
rinse it with warm freshwater and bake it dry in an oven
C.
soak it in a bucket of commercial solvent and bake with internal heat
D.
clean it with carbon tetrachloride and blow it out with compressed air
查看完整题目与答案
【简答题】2 Christmas lights were invented as a result of a near ly 1.__ tragedy. Before first electric tree lights were 2. ___ used, people used candles to decorate our trees . 3.____ The wax candles were not ...
查看完整题目与答案
【判断题】在设计的萌芽期,设计师/发明家占据更重要的比重。
A.
正确
B.
错误
查看完整题目与答案
【简答题】进给伺服电机编码器脉冲计数错误报警如何处理?
查看完整题目与答案
【简答题】If you look around the streets of London, you'll see the many methods people use to move around. With people on buses, the Tube, cars, motorbikes, bicycles and even roller skates, the roads are alread...
查看完整题目与答案
【单选题】It is reported that bags are getting bigger all the time, and that there are more bags per person on the street today than at any other time in history. If this is ture, possible explanations could in...
A.
The history of the bag rules.
B.
The importance of using libraries.
C.
Different bags used in our daily life.
D.
The use of bags and the rules against it.
查看完整题目与答案
【单选题】关于我国产品质量监督抽查制度，正确的是（ ）。
A.
国家监督抽查的产品，地方可另外重复抽查
B.
实施产品质量监督抽查，可以以明示采用的经过备案的企业标准作为判定产品质量的依据
C.
实施产品质量监督抽查的产品质量不合格的，由实施监督抽查的产品质量监督部门予以公告
D.
监督抽查所需的检验费用由企业支付
查看完整题目与答案