皮皮学，免费搜题
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【单选题】
给予酚妥拉明后，再给予肾上腺素可出现（）
A.
血压不变
B.
血压下降
C.
血压升高
D.
血压先升后降
E.
血压先降后升
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】A list signal of one white light indicates that the vessel is （）.
A.
on an even keel
B.
listing about 1° to the side the light is displayed on
C.
listing over 5° With the light displayed on the high side
D.
listing，and the chutes should be directed to the side where the light is displayed
查看完整题目与答案
【单选题】A vessel showing a yellow light over a white light at night is a vessel ().
A.
engaged in piloting
B.
towing astern
C.
engaged in fishing
D.
in distress
查看完整题目与答案
【单选题】A vessel trawling will display a ______.
A.
red light over a white light
B.
green light over a white light
C.
yellow light over a red light
D.
white light over a green light
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【单选题】A buoy marking a wreck will show a(an) ______.
A.
white light FL (2) and a topmark of 2 black spheres
B.
occulting green light and may be lettered
C.
yellow light and will be numbered
D.
continuous quick white light and may be numbered
查看完整题目与答案
【单选题】胺从结构上可看作是氨的
A.
含氮衍生物
B.
氨基衍生物
C.
酰基衍生物
D.
烃基衍生物
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【单选题】On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.
A.
indicates the limits of the navigable channel
B.
indicates a danger area
C.
is used to identify the characteristics of the light
D.
serves no significant purpose
查看完整题目与答案
【单选题】(White and black) light, (if mixing) (in) the right proportion, (will show) us grey.
A.
White and black
B.
if mixing
C.
in
D.
will show
查看完整题目与答案
【简答题】White light (4000Å~7000Å) falls on a soap bubble (thickness t=3000Å, n=1.3).Light at which wavelength is maximally strengthened in the reflecting light?λ = __________ Å
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【单选题】当NC故障排除后,按RESET键( )。
A.
消除报警
B.
重新编程
C.
修改程序
D.
回参考点
查看完整题目与答案
【单选题】A vessel showing a green light over a white light in a vertical line above the level of the sidelights is ______.
A.
engaged in underwater construction
B.
under sail and power
C.
a pilot vessel
D.
trawling
查看完整题目与答案
相关题目：
【单选题】A list signal of one white light indicates that the vessel is （）.
A.
on an even keel
B.
listing about 1° to the side the light is displayed on
C.
listing over 5° With the light displayed on the high side
D.
listing，and the chutes should be directed to the side where the light is displayed
查看完整题目与答案
【单选题】A vessel showing a yellow light over a white light at night is a vessel ().
A.
engaged in piloting
B.
towing astern
C.
engaged in fishing
D.
in distress
查看完整题目与答案
【单选题】A vessel trawling will display a ______.
A.
red light over a white light
B.
green light over a white light
C.
yellow light over a red light
D.
white light over a green light
查看完整题目与答案
【单选题】A buoy marking a wreck will show a(an) ______.
A.
white light FL (2) and a topmark of 2 black spheres
B.
occulting green light and may be lettered
C.
yellow light and will be numbered
D.
continuous quick white light and may be numbered
查看完整题目与答案
【单选题】胺从结构上可看作是氨的
A.
含氮衍生物
B.
氨基衍生物
C.
酰基衍生物
D.
烃基衍生物
查看完整题目与答案
【单选题】On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.
A.
indicates the limits of the navigable channel
B.
indicates a danger area
C.
is used to identify the characteristics of the light
D.
serves no significant purpose
查看完整题目与答案
【单选题】(White and black) light, (if mixing) (in) the right proportion, (will show) us grey.
A.
White and black
B.
if mixing
C.
in
D.
will show
查看完整题目与答案
【简答题】White light (4000Å~7000Å) falls on a soap bubble (thickness t=3000Å, n=1.3).Light at which wavelength is maximally strengthened in the reflecting light?λ = __________ Å
查看完整题目与答案
【单选题】当NC故障排除后,按RESET键( )。
A.
消除报警
B.
重新编程
C.
修改程序
D.
回参考点
查看完整题目与答案
【单选题】A vessel showing a green light over a white light in a vertical line above the level of the sidelights is ______.
A.
engaged in underwater construction
B.
under sail and power
C.
a pilot vessel
D.
trawling
查看完整题目与答案