A．In the morning.B．In the afternoon.C．At noon.D．At night.
A. In the morning.
B. In the afternoon.
C. At noon.
D. At night.
查看答案
A．By asking her parents for help.B．By borrowing money from her relatives.C．By working
A. By asking her parents for help.
By borrowing money from her relatives.
C. By working herself.
D. With the government loan.
The vaccine generated by reverse genetics is required to review in that ______.
A. it has strong side effect to the elderly.
B. it may turn ineffective in a short period.
C. it is useless in preventing the virus.
D. it hasn't been tested in humans.
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