高压灭菌后的物品一般可保留()。
A.4天
B.1周
C.2周
D.3周
E.1个月
参考答案:C
解析:高压灭菌后的物品在2周内使用最安全。
下列词语中加点字的读音全都正确的一组是:
A.敕(chi)造赦(she)免新正(zheng)少不更(geng)事
B.畏葸(xi)崔嵬(wei)俨(yan)然间(jian)或一轮
C.冗(rong)长尧(yao)舜监(jian)生冠(guan)冕堂皇
D.便(bian)宜炮(pao)烙藩(fan)离弃甲曳(yi)兵
One _______ fact is _______ Crystal always keeps a toothbrush in his pocket for good luck when he is the host of the Academy Awards.
A.little-knowing ; 不填
B.well-known ; which
C.little-known ; what
D.little-known ; that