单项选择题

Who have found a protein called M2

A．Scientists from a Belgium University.
B．Drug-makers in Belgium.
C．Doctors in a Belgium hospital.
D．it is not mentioned.
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The working contract is offered on a________ basis.
A．two-month
B．twenty-month
C．ten-month
D．twelve-month
单项选择题
The work of Project Manager is chiefly concerned with
A．emergency relief programmes.
B．agricultural rehabilitation.
C．helicopter assisted surveys.
D．strategic planning,
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