显微镜的视野中，发现物像位于右下方，要想使物像移至视野中央，应向____方向移动玻片标本。 [ ]
A．左上方
B．左下方
C．右上方
D．右下方
D
Come on, Maria! You can also enjoy_______ you have been dreaming of if you don’t lose heart.
A．as convenient a life as
B．as a convenient life as
C．as a life convenient as
D．convenient as a life as
甲状腺下动脉通常起自（）
A．甲状颈干
B．颈总动脉
C．颈外动脉
D．颈内动脉
E．锁骨下动脉
