预制阳台单边尺寸允许偏差为()。
A.±1mm
B.±2mm
C.±3mm
D.±4mm
参考答案:B
不符合小儿生长发育规律的是()
A.生理性体重下降不超过原体重的10%
B.出生时女婴平均体重略低于男婴
C.女孩骨骼发育速度较男孩为慢
D.男、女孩乳牙更换时间基本相同
E.女孩青春期加速生长比男孩提前2年
用所给单词的适当形式填空。
1. In 1809, Santa had eight ________ (reindeer).
2. Most animals run on four ________ (foot).
3. —What's your _______? —1.88m. (high)
4. Her grandfather told her not ________ (water) the flowers if it rained.
5. Our class could play soccer for a week without ________ (stop).