【判断题】人之所以在焦虑紧张时会不由自主地重复某些动作,是因为在重复这些动作的过程中,引发了大脑中血清素的活动,从而降低焦虑感。
【单选题】What’s your hobby? My hobby is ______ model plane.
【简答题】My hobby is reading books.
【多选题】铰链四杆机构中,与机架相连的杆称为 ,其中作整周转动的杆称为 ,作往复摆动的杆称为 。
【单选题】What is a "hobby"?
A.
A hobby is an activity that you often do .
B.
A hobby is an activity that you enjoy doing in your spare time.
C.
A hobby is an activity that you do every day .
D.
A hobby is an activity that you do sometimes .
【单选题】What is your hobby?
A.
My hobby is listening to music.
B.
my hobby like listening to music.
C.
i like listen to music.
D.
i like listening music.
【简答题】在铰链四杆机构中,与机架相连的杆称为 ,其中作整周转动的杆称为 ,作往复摆动的杆称为 ,而不与机架相连的杆称为 。
【单选题】铰链四杆机构中,与机架相连作往复摆动的构件为()。
【判断题】人之所以在焦虑紧张时会不由自主地重复某些动作,是因为在重复这些动作的过程中,引发了大脑中血清素的活动,从而降低焦虑感。