多项选择题

扶肋木挺髋练习动作要领和注意事项? A.
面朝前双手扶肋木蹲下,做向前挺髋练习 B.
注意双手握的距离稍开,蹲下时放松,髋关节发力快,动作幅度大

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未分类题
The advantage of 'drip' coffee makers shown in the text is that ______.A.they are much more economicB.they can produce only one cupC.they are more convenient and easier to operateD.they are more economical
A.A.they
B.they
C.they
D.they
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The word 'it' in Line 3, Para 3 probably refers to ______.A.the lidB.coffee -makerC.the brewing processD.the model
A.A.the
B.coffee
C.the
D.the
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