土和风元生成（）
A．涩味
B．甘味
C．酸味
D．苦味
E．咸味
参考答案：A
They lost their way in the forest, and _______ made matters worse was that night began to fall.
A．that
B．it
C．what
D．which
监理企业的质量方针应由企业 (60) 颁布。
A．管理者代表 B．质量主管C．最高领导者 D．技术主管
