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【单选题】
足月新生儿，生后2。为预防维生素D缺乏性佝偻病的发生，应建议每日口服维生素D的剂量是A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
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举一反三
【单选题】You should allow your children the space to voice their opinions,______they are different from your own..
A.
until
B.
even if
C.
unlness
D.
as though
【单选题】In your class, you should allow students to voice their opinions, they are different from your own.
A.
until
B.
unless
C.
even if
D.
as though
【判断题】Firstly , before deciding where to go, you should learn about the place, either from books or the Internet. Will you need a visa? If so, you should allow enough time to get one. Question:You should ge...
A.
正确
B.
错误
【单选题】目前，数据安全中使用的数据加密技术可以分为
A.
对称型加密和不对称型加密
B.
对称型加密和不可逆加密
C.
对称型加密、不对称型加密和不可逆加密
D.
对称型加密和可逆加密
【简答题】根据“ 2.4 课程实践2 ”要求,练习习题第 1 题前5个小题,每个小题所需要的表、字段、数据查询结果记录条数。另外,查询结果可上传图片。
【单选题】4节中例题练习第一个视频教程中,打开vs后lesson2_1.c文件中,printf命令中的字符串为()。
A.
Hello World!
B.
hello world!
C.
This is a C program!\n
D.
Welcome!
【单选题】What does a 'we should allow for a marginal error' mean?
A.
You should plan for delays.
B.
You should cut everything closely.
C.
You shouldn't make any mistakes when going for and appointment.
D.
You should always be punctual:
【判断题】You are not perfect, and you should allow other people to be in the spot light.
A.
正确
B.
错误
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