Choose programming exercises that help you focus on the exam objectives, and don't avoid the stuff you're afraid of.
选择与考试目标相关的编程练习，不要回避您害怕的东西。
The material in this tutorial primarily covers the objectives in Section 8 of the exam, entitled "Advanced programming."
本教程中的资料主要覆盖考试第 8 部分 “高级编程” 中的目标。
Objectives the aim of this study is to exam the change of the bone mineral density in pregnancy and lactation using ultrasound technology.
目的超声定量监测妊娠期及哺乳期妇女跟骨骨密度，研究妊娠及哺乳期妇女骨密度的变化规律，探讨超声监测的意义。
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