涎石症主要好发于(),其与肿瘤鉴别的关键在于:().
参考答案:下颌下腺;涎石症具有导管阻塞症状
单词拼写(10题,共10分)
小题1:She lives in a charming c_________(村舍,小屋)in the countryside.
小题2:If you are easy to get lost, you’d better take a ________(指南针)with you.
小题3:No word can c_______ (表达,运送)my thanks to you at the moment.
小题4:The accident is d_____ to your careless driving.
小题5:They are to put on an e______________ of French paintings next week.
小题6:This story will be _____________ (翻译)from English into Chinese.
小题7:He made an ____________(试图)to escape from being punished.
小题8:I am ________ (习惯于)to taking a walk after supper.
小题9:Is there anything in ________ (特别) you'd like for dinner?
小题10:As for you, you should be ________( 羞愧的) of yourself.
以下为物理常数的是()
A.熔点
B.吸光度
C.理论板数
D.比旋度
E.旋光度