What is the most efficient way when you are in trouble while travelling in a foreign country?
A、Find help from local police station.
B、Make a call to 8610-12308.
C、Ask for help from your travel agency.
D、Ask help from local police station.
A、Find help from local police station.
B、Make a call to 8610-12308.
C、Ask for help from your travel agency.
D、Ask help from local police station.
A、T
B、F
A、considerable researches were conducted
B、the focus of this review paper is on…
C、some research works published in the last years on this subject indicate…
D、contributions have been made by
A、test the readers’ knowledge about waves.
B、draw the readers’ attention to the topic.
C、show Jamie Taylor’s importance.
D、invite the readers to answer them.
A、confused
B、discouraged
C、disappointed
D、dissatisfied
Assume that a andare in turn annihilation and creation operators subject to the harmonic oscillator potential. (1) Please give explicitly the x and p in terms of these operators. (2),please calculate the coefficient.
B.Are you OK
C.How are you doing
D.Nice day, isn’t it
A、causal relationship
B、inclusive relationship
C、opposite relationship
D、All above
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