中空无人机任务高度一般在()之间 A.0~100m B.100~1000m C.10

题型:单项选择题

问题:

中空无人机任务高度一般在()之间

A.0~100m

B.100~1000m

C.1000~7000m

考点:无人机AOPA驾驶证考试无人机培训综合练习无人机培训综合练习题库
题型:单项选择题

Santi's big brother Len had told him never to push all the remote control buttons at the same time. He said that something terrible would happen if he did. Santi didn't really believe this. While Len was out of the room, Santi jumped down on the sofa with the remote control in his hand. For a while, he changed from channel to channel, looking for something interesting to watch. Bored, Santi decided to see what Len could have meant.

With a quick glance(扫视) over his shoulder to make sure Len hadn't come back,he pushed all the buttons at once. Santi saw a bright flash,and he dropped the remote control. "I've broken it,"he thought. "Now I'm in trouble!" As he looked around for the remote control,he realized he was in more trouble than he'd thought. He was suddenly only the size of a mouse.

"Oh,no!"Santi shouted. He had to find his parents quickly. Carefully, he climbed down the side of the huge sofa and hurried across the floor. In the kitchen, Santi could see that the sliding door(滑门) had been left open. “If the door is open, then the cat might be in here,” tiny Santi said.

Just then, Santi and the cat saw each other. Santi ran for the door, the cat closing in quickly behind him. Just as the cat reached out to attack Santi, it slipped(打滑) on some water and slid across the kitchen floor. Out of breath, Santi hid behind a flowerpot in the corridor. He could see his mum far away in the garden. “How will I ever get there?” he wondered. As he looked out from behind the flowerpot, there was the huge cat looking right at him! Santi rushed for the garden and then…, he woke up. “It was only a dream!” he said with a relieved smile. “Thank goodness!”

小题1:Len told Santi something terrible would happen if he _________.

A.changed from channel to channel

B.tried to pretend(假装)to be a mouse

C.pushed the buttons at the same time

D.stayed alone in the living room小题2:Santi thought the cat might be in the kitchen because ________

A.he heard a moving sound

B.the cat liked the kitchen

C.the sliding door was open

D.he saw the cat came into it小题3:The word “relieved” can be used to describe Santi’s feeling ______

A.when he was playing with the remote control

B.when his big brother warned him something

C.when he was no longer worried about the cat

D.when he saw his mum far away from him小题4:The story probably tries to tell that ________

A.what happens if you break a rule

B.it’s dangerous to stay alone at home

C.people don’t want to get smaller

D.sometimes pets are not friendly

题型:单项选择题

小柴胡汤的主治证包括()。

A.伤寒少阳证

B.少阳湿热证

C.黄疸而见大便秘结

D.阳郁厥逆证

E.寒热互结证

题型:单项选择题

关于密度下列说法中正确的是(  )

A.由ρ=

m
V
,ρ与m成正比

B.由m=ρv,有m与v成正比

C.由ρ=

m
v
,ρ与v成反比

D.ρ是物质的特性,与m、v无关

题型:单项选择题

下列情况下,最终有沉淀的是[ ]

A.向澄清石灰水中通入过量的CO2

B.向澄清石灰水中通入过量的SO2

C.向Na2SiO3溶液中通入CO2

D.向CaCl2溶液中通入CO2

题型:单项选择题

下列关于个人住房贷款的利率说法错误的是( )。

A.期限1年以上的贷款遇到法定利率调整时可由借贷双方按商业原则确定
B.期限1年以内(含1年)的贷款遇到法定利率调整时不分段计息
C.计息、结息方式由中国人民银行确定
D.实践中,1年以上的贷款遇到法定利率调整时通常是次年1月1日期按新利率计息

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