Here came        word        he got the first in the competition .

A．a; that

B．/; that

C．a; which

D．/; which

该患者的第一诊断应考虑

A．慢性细菌性痢疾
B．慢性血吸虫病
C．丝虫病
D．溃疡性结肠炎
E．疟疾