当前起落架后部上端的通气口有红油渗漏时,表明()
A.前轮转弯作动筒可能漏油
B.起落架内筒可能漏油
C.起落架收放作动筒可能漏油
D.都有可能
参考答案:B
下图是时任外交副部长的乔冠华在联大通过“中华人民共和国成为中国在联合国唯一合法政府,恢复中国在联合国的一切合法权利”决议之后的大笑图,请问这是发生在哪一届联合国大会上: [ ]
A.第24届
B.第25届
C.第26届
D.第27届
Which of the following is least likely to describe a cross-sectional data set()
A. An index's quarterly returns in 2011.
B. The annual sales growth of companies in mining industry in 2011.
C. Price-to-earnings ratios of publicly traded companies at the end of 2011.