皮皮学,免费搜题
登录
搜题
【简答题】
Recently, a solar-powered (太阳能动力的) plane took to the sky for the first time. It passed an important test on the way to travel around the world. The plane took off from an airport in Switzerland. It slowly rose above the fields and into the sky. “There has never been an airplane of that kind that could fly — never an airplane so big, so light, using so little energy,” said Bertrand Piccard, a leader of the project. During the 90-minute flight(飞行), the plane did several turns. It climbed nearly 1.6km above the countryside. Engineers plan to test a night flight before July. Then they will use the results of the tests to build a second plane. They plan to travel around the world in that plane in 2012. “We want to fly it day and night with no fuel (燃料),” Piccard said. Piccard and pilot(飞行员) Andre Borschberg will take the plane around the world. They will make a few stops to change places and rest after a long time in the air — and to show off their airplane. The plane will fly at 70 km per hour on average(平均). That is faster than a bike and slower than a car. The pilots will keep the plane in the air for up to five days at a time. 小题1:The passage is probably taken from _____________. A.a postcard B.a newspaper C.a comic book D.an advertisement 小题2:The solar-powered plane ________________. A.is big and heavy B.uses much energy C.passed the first test D.will have a night flight after July 小题3:How long will it take the solar-powered plane to travel 140 km? A.About a day and a night. B.About 5 days. C.About 2 hours. D.About 90 minutes. 小题4:Which of the following is NOT mentioned(提到)in the passage? A.During the 90-minute flight, the solar-powered plane reached a height of 1.6km. B.The solar-powered plane is slower than a car and faster than a bike. C.Maybe the solar-powered plane will fly with no fuel. D.It took a long time to build the solar-powered plane. 小题5:The passage mainly talks about ___________________. A.the solar-powered plane B.the speed of the solar-powered plane C.how to make the solar-powered plane D.the world travel of the solar-powered plane
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】目前世界上公认的创新型国家有( )个左右。
A.
10
B.
20
C.
30
D.
40
【简答题】前向通道有一个积分环节的二阶系统当输入为单位( )函数时,其响应的稳态误差恒为2ζ/wn。
【单选题】下列账户的期末余额,应转入“本年利润”账户的是
A.
销售费用
B.
制造费用
C.
生产成本
D.
累计折旧
【单选题】下列哪项不是肾综合征出血热血常规改变的特点
A.
WBC增高
B.
血小板降低
C.
红细胞,血红蛋白增加
D.
异型淋巴细胞出现
E.
嗜酸性粒细胞增加
【多选题】关于点火线圈说法正确的是:
A.
相当于一个变压器
B.
初级消耗的能量一定大于次级产生的能量
C.
次级产生的能量一定大于初级消耗的能量
D.
次级线圈产生感应电压击穿火花塞电极
【单选题】下列哪项不是肾综合征出血热血常规改变的特点
A.
白细胞增高
B.
血小板降低
C.
红细胞,血红蛋白增加
D.
嗜酸性粒细胞增加
【单选题】下列哪项不是肾综合征出血热血常规改变的特点:
A.
WBC增高
B.
血小板降低
C.
红细胞计数和血红蛋白增加
D.
异形淋巴细胞出现
E.
嗜酸性粒细胞增加
【单选题】1产品从投入时刻起至加工完毕止的时间长度称为( ).
A.
零件工序生产周期
B.
零件加工生产周期
C.
产品生产周期
D.
大量生产周期
【单选题】下列哪项不是肾综合征出血热血常规改变的特点
A.
WBC增高
B.
血小板降低
C.
红细胞,血红蛋白增加
D.
异形淋巴细胞出现
E.
嗜酸性粒细胞增加
【判断题】下图 使用放样命令及缩放修改变形工具,放样出电话听筒三维模型。
A.
正确
B.
错误
相关题目: