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【单选题】
In 1991, international mountaineers lost their lives in Meili Snow Mountain due to ______.
A.
a storm
B.
an avalanche
C.
an eathquake
D.
a tornado
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】If the objective coefficient of a non-basic variable in the optimal basis of linear programming problem changes, then ( )
A.
The test number of this basic variable changes
B.
The test number of other basic variables changes
C.
The test numbers of all non-basic variables change
D.
The test numbers of all variables change
【判断题】In Beat 2 of the Horse Stance Side-step Movement, both hands end up in the ready stance.
A.
正确
B.
错误
【单选题】When measuring the short-circuit characteristics of synchronous generators, if the speed decreases by , the measured short-circuit characteristics ( ).
A.
Be unchanged
B.
Increase by 0.8 times
C.
Reduce by 0.8 times.
【单选题】The reason why the stable short-circuit current of the synchronous generator is not very large ( ).
A.
Large leakage impedance
B.
Short-circuit current produces strong demagnetization;
C.
The armature reaction produces magnetization
D.
The synchronous reactance is relatively large.
【多选题】which ones are the special cloud views of Mount Cangshan in Dali？
A.
Husband-Expecting Clouds
B.
Jade Belt Clouds
C.
summer clouds
D.
winter clouds
【单选题】These natural veins of marbles are spoken of as “______”.
A.
Natural weavings
B.
Natural Chinese Paintings
C.
Natural Oil Paintings
D.
Natural landscapes
【单选题】Hand motions in Beat 5 of the Waist-twining Silk-flinging: Raise both arms forward to （ ） degrees in the upper left and fling the silk, make two arms form a （ ）-degree angle.
A.
45、45
B.
45、60
C.
60、60
D.
60、45
【单选题】InTibetan culture, what does the term “Shangrila” mean？
A.
a dreamlike paradise
B.
the sun and the moon in the heart
C.
a peaceful lake
D.
a holy place
【单选题】When the synchronous generator is connected in quasi synchronous parallel with the power grid, all other conditions are met except that the generator voltage is only less than 5% of the power grid vol...
A.
Generate huge current, so that the generator cannot be paralleled
B.
Generate a small current, which is inductive current
C.
Generate a small current, which is a capacitive current
D.
Generate a small current, which is an active current