题目内容

横向力系数是（）

A. 横向力与法向反力的比值
B. 法向反力与横向力的比值
C. 横向力与汽车重量的比值
D. 法向反力与汽车自重的比值

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当公路的设计车速为60km/h时，反向曲线间的直线段最小长度以不小于（）为宜。

A. 80m
B. 120m
C. .360m
D. 480m

The PFD is designed to improve a pilot's situational awareness by integrating this information into a ______display instead of six different analog instruments.

A. only
B. individual
C. single
D. unique

PFDs also increase situational awareness by alerting the aircrew to unusual or potentially_____conditions (e.g., low airspeed, high rate of descent) by changing the color or shape of the display or by providing audio alerts.

A. bad
B. harmful
C. beneficial
D. hazardous

The second part of the glass cockpit, comprising over-and-under center display _____ , shows the aircraft's systems conditions and engines performance.

A. screens
B. glasses
C. instruments
D. procedures