滚珠丝杠螺母副按其中的滚珠循环方式可分为________和________两种。
参考答案:内循环;外循环
小题1: You can call Zhang Ying if you want to _____________________.
A.buy a bike
B.sell a bike
C.have your bike repaired
D.borrow a bik小题2:One of the reasons why Li wants someone to share his room is that______________.
A.he wants to live near the campus
B.he wants to improve his English
C.he wants his washer, dryer and kitchen to be used
D.he wants someone to use his kitchen小题3:Joseph Hofman_________________.
A.found John Smith’s briefcase
B.was a teacher
C.found the briefcase with many books
D.found the brown briefcase with some money
小量不保留灌肠所用灌肠液的温度是()
A.36℃
B.37℃
C.38℃
D.39℃