国土安全部the Department of Homeland Security他们起初是以冒险家身份踏上我国国土的.They first set foot on our soil as adventures.他们决心把侵略者赶出国土.They were determined to drive the aggressors out of their soil....
冷水中生物的基础代谢速度要低很多。Basal metabolism is much lower for creatures in cold water.这款相机既坚固耐用，又有超凡的光学性能和快门速度。The camera combines rugged reliability with unequalled optical performance and speed.实验者已经成功控制了心跳的速度和频率。Experimenters h...
腕骨的骨量充足, 前面比侧面宽.Carpus is heavy - boned, wider front than at the side.血清T_4及骨龄 ( 腕骨 ) 、血清铜均正常.T _ 4, bone age ( wrist ) and serum copper content were normal.方法 CRT- C2测7～14岁儿童智商,拍手腕骨 X 线片判定骨龄,标准量具测身高、体重.Methods : Test ...