According to the text, why are test flights most dangerous?(本题分值:2分) 相关知识点: 试题来源: 解析 BA. The plane may explode in the air.B. The pilot may lose control of the plane.C. The engines may be damaged.D. Too much air may get into the plane.反馈 收藏 ...
Airplanes seed threatening storm cells with a chemical to make small ice crystals fall as rain before they can grow into dangerous hailstones. But farmers in east-central Alberta — downwind of the hail project flights — worry that precious moisture (水分) is being stolen from their thirsty ...
根据第二段And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights.(尽管一些航空公司禁止乘客在飞机起飞和降落时使用这类设备,但考虑到许多乘客希望在飞行期间...
since 1996 a group of insurance companies have spent about $2 million per year on the Alberta Hail Suppression Project. Airplanes seed threatening storm cells with a chemical to make small ice crystals fall as rain before they can...
Boeing installed extra software to make the updated 737 fly like traditional ones. It was designed to prevent stalls, compensate for the position of the engine on the wing, and force the aircraft’s nose down automatically when the sensors determined the airplane was flying at a dangerous angle...
In no particular order, we've put together a list of the 25 most dangerous airports in the world that are every pilot’s worst nightmare! 1. Courchevel Airport, France Located in the middle of the French Alps, Courchevel Altiport is considered as one of the most dangerous in Europe. The...
Consider this scenario: war in the Middle East shuts down airspace over Iran, Iraq, Israel, Jordan and Lebanon. To the north, Russian skies remain forbidden to Western airlines. Given that most airl…
59.考查动词的被动语态。句意:高等阶层的公民被允许住在离中心地带更近的地方。分析句子结构可知,空格处在句中作谓语,和主语Citizens of higher social classes构成被动关系,因为是对过去事实的陈述应用一般过去时。故填were permitted。 60.考查动词时态。句意:这些高...
Mountains, wind shear and a short runway – Lukla has it all. Often called the world’s most dangerous airport, the gateway to Everest, in the mountains of Nepal, has its runway laid out on a cliffside between mountains – just 1,729 feet of it – dropping straight into an abyss at ...
dangerous or not. The fact that aircraft may be vulnerable (易受损的) to interference raises the risk that terrorists may use radio system in order to damage navigation equipment. As worrying, though, is the passenger who can't hear the instructions to turn off his radio because the music'...