飞机请求立即强迫着陆的辅助联络信号是()。A.飞机通过跑道上空,昼间放下起落架,夜间

题型:单项选择题

问题:

飞机请求立即强迫着陆的辅助联络信号是()。

A.飞机通过跑道上空,昼间放下起落架,夜间打开着陆灯

B.飞机通过跑道上空,昼间摇摆机翼,夜间打开着陆灯

C.飞机通过跑道上空并发出一颗或者数颗信号弹(昼、夜间相同)

考点:ATP中国基本飞行规则ATP中国基本飞行规则题库
题型:单项选择题

__________为人的发展提供了生理基础与可能性。

题型:单项选择题

如图为男女生殖器官图,根据图中编号及所指部位回答问题。

(1)胎儿产出的通道是[ ]_________

(2)人体的性腺包括[    ]_______(功能是产生_______分泌_______)和[ ]________(功能是产生________分泌______)。

(3)[    ]________产生的精子和[    ]________产生的卵细胞在[ ]__________内结合形成受精卵。

题型:单项选择题

计算某年某地平均每千名育龄妇女的活产数的指标是

A.粗出生率
B.总生育率
C.年龄别生育率
D.总和生育率
E.自然增长率

题型:单项选择题

下列关于行政诉讼中被告的说法中正确的是()。

A.国家可以成为行政诉讼的被告 

B.被告只能是行政机关 

C.被告必须是被诉具体行政行为的实施者 

D.被告可以是行政机关的工作人员

题型:单项选择题

The development of e-commerce may well bring the world into a brand new era of "electronic currency". At the moment, (51) areas in Europe, the United States and Asia have already started studying the possibility of an electronic currency. Electronic currency is not only about currency. It (52) to an entire finance system on the Net. It includes a virtual numeric currency, an electronic system of withdrawals, transfers and loans, and (53) cards of all shapes and sizes. The (54) of an electronic currency system implies the emergence of "virtual banks" and "virtual enterprises". Actually, the first virtual bank appeared in the US in 1995. (55) it is a small and insignificant bank, it represents the trend of the future. In time to come, we may even have to (56) the familiar paper currency.

As the Net pushes the economy (57) rapidly, the economy is also bringing the Net market forward, resulting in the Internet itself becoming the world’s largest emerging market. Of course, this is just the beginning. Although there are many companies which made huge profits (58) in the Internet market, they tend to be small companies. To date, most companies are making losses. The competition in the knowledge-based economy will also be more (59) This will definitely promote (60) and more efficient cooperation.

55().

A.If 

B.After 

C.Until 

D.Although

更多题库