∴∠BAD=∠CAE=90°,
在Rt△ABD和Rt△ACE中, {BD=CEA
⑴____A. play B. phone C. computer
⑵____A. help B. TV C. talk
⑶____A. in B. under C. box
⑷____A. breakfast B. lunch C. evening
⑸____A. mum B. after C. dad
正确地盖盖玻片是成功制作临时装片的关键。下图所示制作临时装片时盖盖玻片的操作,正确的是( )
——How much do you usually ______ on food and clothes every month ?——About ¥600.