亚硝酸盐主要来源于______。
A．储存过久的蔬菜
B．刚腌不久的蔬菜
C．用苦井水煮粥
D．误将亚硝酸钠当做食盐
参考答案：A,B,C,D
32. What the leader referred to in the report was really something _______.
A．worthy to be considered
B．worth to be considered
C．worthy of considering
D．worth being considered
不符合水痘皮疹特点的是
A．皮疹呈向心性分布
B．皮疹不伴瘙痒
C．丘疹、疱疹、结痂可同时存在
D．皮疹最初形态为斑丘疹
E．黏膜处也可见皮疹
