单项选择题

Their experiments show that the ______ strain of wheat grows more quickly and is resistant to disease.

A．newly planted
B．newly cultivated
C．hybrid
D．imported
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单项选择题
Mr. Li is the present ______ of the presidential chair of the company.
A．transaction
B．prescription
C．professor
D．incumbent
单项选择题
He was present in his ______ role of school manager, church warden and donor.
A．dedicated
B．triple
C．providential
D．religious
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