动物运动系统的组成是
A.皮肤、骨骼和肌肉
B.骨、骨连结和骨骼肌
C.骨、关节和肌肉
D.长骨、短骨和扁骨
答案:B
运动系统由骨骼和肌肉组成,骨骼是由多块骨连接而成。
He has never been to France, ___ Harry.
A.neither has
B.nor did
C.so does
D.so has
新生儿棒式体温计示值允差为()。
A.±0.15℃
B.±0.2℃
C.-0.15℃~0.1℃
D.-0.150℃~0.05℃
E.-10.10℃~0.005℃