A、 Most material of the radar scope is fiberglass.
B、 Most of the material in the radome is fiberglass.
C、 Most of the material in the radar cap is fiberglass.
答案：B
A、 Most material of the radar scope is fiberglass.
B、 Most of the material in the radome is fiberglass.
C、 Most of the material in the radar cap is fiberglass.
答案：B
A. 左1号登机门1号地板右前边缘有一条1英寸深6英寸长的凹陷。
B. 左1号登机门1号地板离右前边缘6英寸处有一条1英寸深的凹槽。
C. 左1号登机门有一块地板到右前边缘6英寸处有一条1英寸深的凹坑。
A. Do the procedure to preserve the carbon steel cables.
B. Do the procedure to lubricate the stainless steel cables.
C. Do the procedure for the protection of the carbon steel harnesses.
A. When you try to change a word, make sure that the substitute you choose doesn＇t replace the meaning of the sentence.
B. Make sure that the chosen replacement word will not vary the implication of the sentence if you replace a word.
C. When you replace a word, always make sure that the alternative you select does not change the meaning of the sentence.
A. The Federal Aviation Regulations require the use of ‘maximum continuous power’, during certification of an airframe and engine combination, to show compliance with certain standards.
B. The Federal Aviation Regulations require the compliance with certain standards for an airframe and engine combination if they use ＇maximum continuous power＇ during certification.
C. The use of ‘maximum continuous power’ and the compliance with certain certification standards are required by the Federal Aviation Regulations.
A. The lower seal appears as the lower bearing is pulled down.
B. You can see the lower seal before pulling the lower bearing down.
C. Only after you pull the lower seal down can you see the lower bearing.
A. 如果活门过早开启，停止测试。
B. 如果活门已经开启，停止测试。
C. 如果活门的开启时机未到，停止测试。
A. 确保应答机正确发送信号。
B. 确保发射机正确发送信号。
C. 确保转换器正确接收信号。
A. 将飞机放回到通常停放位。
B. 将飞机放回到初始位置。
C. 将飞机恢复到初始构型.
A. 检查表可按两名飞行员飞机的“质疑”和“响应”标题排列，或按单飞飞行员飞机的项目和条件标题排列。在任何一种方法下，都会列出要检查的项目，并说明所需的条件。
B. 检查单可按双机组飞机的“挑战”和“响应”标题排列，或按单机组飞机的“项目”和“条件”标题排列。在任何一种方法下，要检查的项目都会列出所害的条件。
C. 双人制机组飞机的检查单可分为“挑战”和“响应”两列内容，单一驾驶员飞机的检查单可分为“项目”和“条件”两列。任何一种情况下，应明确检查项对应的目标检查结果。
A. The function of the portable water system is to store and send drinking water to the passengers.
B. The potable water system must keep and transfer the water to the toilet for washing only.
C. The purpose of the drinking water system is to store and deliver the water for drinking.
