问题
多项选择题
关于影响体力活动能量消耗的因素,正确的是()
A.肌肉越发达,活动能量消耗越多
B.体重越重者,能量消耗多
C.劳动强度越大,能量消耗越多
D.同等强度劳动,持续时间越长,能量消耗越多
E.工作熟练程度低者,能量消耗较少
答案
参考答案:A, B, C, D
关于影响体力活动能量消耗的因素,正确的是()
A.肌肉越发达,活动能量消耗越多
B.体重越重者,能量消耗多
C.劳动强度越大,能量消耗越多
D.同等强度劳动,持续时间越长,能量消耗越多
E.工作熟练程度低者,能量消耗较少
参考答案:A, B, C, D
短文填空。 | |
![]() either for business or for pleasure. Now, more and more teachers and students are __1__ this form (形 式) of communication to __2__ their language skills, particularly in English. E-mail has become so popular because it's quite __3__. In the past, teachers often __4__ pen pal projects so that their students could __5__ ideas with their pen pals. But sending and __6__ paper letters could take a few weeks sometimes, so students might lose __7__ in the project some day. Now with e-mail, __8__ , messages can be sent or received __9__ on the Internet. __10__ of waiting for days or weeks, students can receive a reply during days, hours, or even minutes. |