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【简答题】
翻译下面句子: Hardness is that property in steel which resists indentation. It is the ability of a material to resist penetration and abrasion. Hardness is usually expressed in terms of the area of an indentation made by a special ball under a standard load, or the depth of a special indenter under a specific load.
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】下列不属于苷的水解的是
【单选题】亚急性感染性心内膜炎病程后期,病人出现肢体变白或发绀、皮肤温度降低、疼痛、动脉搏动减弱或消失等,是合并发生了
A.
脑栓塞
B.
肾栓塞
C.
脾栓塞
D.
肺栓塞
E.
肢体动脉栓塞
【单选题】.亚急性感染性心内膜炎病程后期,病人出现肢体变白或发绀、皮肤温度降低、疼痛、动脉博动减弱或消失等,是合并发生了
A.
脑栓塞
B.
肾栓塞
C.
脾栓塞
D.
肺栓塞
E.
肢体动脉栓塞
【单选题】Evaluate the following block of code: What is the outcome of the above code?（）
A.
It produces an error because a fully qualified host name needs to be specified.
B.
It produces an error because the range of ports associated with the hosts has not been specified.
C.
It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT and RESOLVE privileges.
D.
It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT privilege but not the RESOLVE privilege.
【单选题】Because of the adverse selection problem,
A.
lenders may make a disproportionate amount of loans to bad credit risks
B.
lenders may refuse loans to individuals with low net worth
C.
lenders are reluctant to make loans that are not secured by collateral
D.
all of the above
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