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【单选题】
下面哪种物质所含钙（ ）为有机钙。A.
碳酸钙
B.
乳酸钙
C.
硫酸钙
D.
氯化钙
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反馈参考答案：
举一反三
【简答题】疑似流行性脑脊髓膜炎患者的脑脊液标本应注意
【简答题】He chose to major in a foreign language in college due to his ___ lack of interest in sciences.由于他对 理科显然没有兴趣,他大学时选了一门外语作为专业。
【多选题】年龄特征的含义包括
A.
儿童心理发展的年龄特征是在一定的社会和教育条件下形成和发展起来的
B.
儿童心理发展的年龄特征与儿童的生理发展有一定的关系
C.
儿童心理发展的年龄特征是从许多个别儿童心理发展的事实中总结概括出来的
D.
心理发展的年龄特征与生理发育的年龄特征不同
【单选题】Which one in the following is categorized as the front end in an IoT system?
A.
Server
B.
Cloud
C.
Actuator
D.
None of above
【单选题】Questions 9 to 12 are based on the conversation you have just heard.
A.
He got very interested in sports.
B.
He worked very hard in studies.
C.
He chose to major in biology.
D.
He did well in both sports and studies.
【简答题】A transport defines how applications access and _____ data between the front end and back end. (transmit transcend)
【单选题】He chose to major in a foreign language in college due to his ______ lack of interest in sciences. (U5—A)
A.
approving
B.
attentive
C.
apparent
D.
transparent
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