A.少于5個(gè)B.10-12個(gè)C.13-15個(gè)D.5-9個(gè)
A.22點(diǎn)B.23點(diǎn)C.24點(diǎn)D.睡前一小時(shí)
A.首因效應(yīng)B.近因效應(yīng)C.倒攝抑制D.暈輪效應(yīng)