A、 Keep out of the engine before it starts.
B、 Keep away from the intake area before the engine starts
in flight, at the lowest speed that will ensure correct engine
C、 Go away from the exhaust area before the engine starts.
答案：C
A、 Keep out of the engine before it starts.
B、 Keep away from the intake area before the engine starts
in flight, at the lowest speed that will ensure correct engine
C、 Go away from the exhaust area before the engine starts.
答案：C
A. 测量压力下降所需时间。
B. 必须测量压力下降时间。
C. 压力下降所需时间是可以测量的。
A. Since airplanes usually have long service lives, their flights are surely safe.
B. It is mandatory to ensure the flight safety because of the long lives of airplanes
C. Despite the long lives of airplanes, their flight safety cannot be assured
A. 手册建议你在流良好的区域制备混合物。
B. 制造商建议你在气流良好的区域制备混合物。
C. 制造商强调你在气流良好的区域制备混合物。
A. Use the specified one if the equivalent material is not available.
B. Use the available equivalent one if no material is specified.
C. lf you can not get the specified material, use an equivalent.
A. If the hydraulic pump turns to generate pressure of 3000 psi, use the electric pump.
B. If the hydraulic pump fails to generate pressure of 3000 psi, use the electric pump.
C. lf the hydraulic pump turns to supply pressure of 3000 psi, use the electric pump.
A. 中心句是一篇文章的第一句,也是最重要的一句。
B. 总结句是一节内容的第一句,也是最重要的一句。
C. 主题句是一段话的第一句,也是最重要的一句。
A. 从新垫圈上标有 ANTENNA SIDE 的一侧 撕掉保护膜
C. 从新垫圈一侧撕掉保护膜 然后标记 ANTENNA SIDE
A. Check all parts with clear defects in accordance with standard industry practices.
B. Check all parts for visible defects in accordance with standard industry practices.
C. Check all parts for serious defects in accordance with standard industry practices.
A. 2 毫米的价值是允许的。
B. 允许使用 2 毫米的价值。%
C. 允许使用 2 毫米的值。
A. 根据手册控制应急装置。
B. 手动控制逃生装置。
C. 紧急情况下,使用人工操纵。
