【简答题】细菌胞浆中常含有________、__________和_______等有形成分,其中_________是细菌蛋白质合成的场所,____________可用于鉴别细菌。
【单选题】What is a requirement for applicants?
A.
Training in customer service
B.
Experience in computer repair
C.
Knowledge of sporting goods
D.
Availability to work on the weekends
【单选题】常住旅客的床上卧具至少()多久更换一次。
【单选题】非典期间,过氧乙酸(CH 3 COOOH)经常作为消毒剂使用。关于过氧乙酸,下列叙述正确的是
C.
过氧乙酸中碳元素、氢元素、氧元素的质量比为2 :4:3
【单选题】His_______approach to the matters involved in customer complaints is intended to provide customers with satisfaction.
【单选题】How many morphemes are there in the word “ usefulness ” ?