问题
单项选择题
妊娠16周
A．胎心出现
B．自觉胎动出现
C．胎儿身长35cm
D．胎儿身长30cm
E．胎儿体重大于3000g
答案
参考答案：B
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妊娠16周
A．胎心出现
B．自觉胎动出现
C．胎儿身长35cm
D．胎儿身长30cm
E．胎儿体重大于3000g
参考答案：B
Everybody needs water. Everything 16 water，too. We use water 17 the bowls, the clothes, and 18 .We use water to plant trees, flowers and crops. 19 does all water come from? It 20 from clouds. Some of rain 21 into the ground. Many people get 22 from under the ground. Some rain water goes 23 the hills. It runs 24 lakes and rivers. Many people get it 25 .
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