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【单选题】
儿童常见味觉下降、厌食甚至异食癖、嗜睡、面色苍白、抵抗力差是缺乏矿物质( )。A.
钾
B.
钙
C.
锌
D.
钠
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反馈参考答案：
举一反三
【单选题】关于小连接体的叙述错误的是
A.
小连接体的作用是把卡环、支托等部件与大连接体相连接
B.
小连接体应该垂直通过基牙的龈缘和大连接体连接
C.
小连接体向固位体方向连接时，应该进入基牙的倒凹区，以提供固位体足够的固位力
D.
小连接体通过龈缘时，应稍离开龈缘
E.
小连接体通过龈缘时，应尽量避免设计在天然牙的中份，以免影响舌的运动
【单选题】Friends are those make you smile，always open their hearts to you and encourage you to succeed
A.
which
B.
what
C.
whom
D.
who
【单选题】—You are always full of . Can you tell me the secret?
A.
efforts
B.
strength
C.
force
D.
energy
【单选题】There is no doubt__________since he is always a punctual person.A．whether he will finish the wor
A.
14. There is no doubt__________since he is always a punctual person. A．whether he will finish the work on time
B.
if he will finish the work on time
C.
that he will finish the work on time
D.
how he will finish the work on time
【单选题】( )14. —I’m always afraid of giving a speech in front of the class. — ____ You can do it well.
A.
I ’ m sorry to hear that .
B.
Take it easy.
C.
You are too nervous .
相关题目：
【单选题】—You are always full of . Can you tell me the secret?
A.
efforts
B.
strength
C.
force
D.
energy
参考解析：
知识点：
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