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【单选题】
飞机的横侧稳定性过弱而方向稳定性过强,在受扰产生倾斜和侧,易产生( )。A.
飘摆现象
B.
机翼自转现象
C.
螺旋不稳定现象
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following actions should be taken first to control an oil fire in a fuel oil tank?
A.
commence draining that tank as quickly as possible
B.
seal off all vents to that tank
C.
activate the CO2 system to that tank
D.
shut off the steam heating coils
【单选题】The fire of fuel oil is classified as a ____fire.
A.
class A
B.
class B
C.
class C
D.
class D
【单选题】Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?
A.
Commence draining that tank as quickly as possible
B.
Seal off all vents to that tank
C.
Activate the CO2 system to that tank
D.
Shut off the steam heating coils
【单选题】有以下四个结论： ①lg（lg10）=0； ②lg（lne）=0； ③若e=lnx，则x=e 2 ； ④ln（lg1）=0． 其中正确的是（ ）
A.
①②
B.
①②③
C.
①②④
D.
②③④
【单选题】The fire of fuel oil is termed _______fire.
A.
class“A”
B.
B class“ B ”
C.
class“C”
D.
class“D”
【单选题】有以下四个结论:1lg(lg10)=0;2ln(lne)=0;3若10=lgx,则x=10;4若e=lnx,则 ,其中正确的是
A.
①③
B.
②④
C.
①②
D.
③④
相关题目：
【单选题】The fire of fuel oil is termed _______fire.
A.
class“A”
B.
B class“ B ”
C.
class“C”
D.
class“D”