在病理状态下才显示于X线平片上的是()
A.骨皮质
B.骨灰质
C.骨髓腔
D.骨膜
E.血管滋养孔
参考答案:D
The MH370 incident has cast a giant shadow over travel to Malaysia for many Chinese. Another large travel agency, China International Travel Service Head Office, has seen a ____ drop in consumers signing up for tours to Malaysia
A.shallow
B.sharp
C.suitable
D.secure
从十九大到二十大,是“两个一百年”奋斗目标的历史()。
A.决胜期
B.交汇期
C.交汇点