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【单选题】
重铬酸钾法的终点，由于Cr3+的绿色影响观察，常采取的措施是A.
加掩蔽剂
B.
使 Cr3+ 沉淀后分离
C.
加有机溶剂萃取除去
D.
加较多的水稀释
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反馈参考答案：
举一反三
【单选题】The mother opened the door quietly so as not to the sleeping baby.
A.
upset
B.
interrupt
C.
disturb
D.
release
【单选题】Our goods must be up to export standards before the Inspection Bureau ( )them.
A.
release
B.
to be released
C.
released
D.
releases
【单选题】释放和更新从DHCP服务器上获取的IP地址及相关信息的命令为( )
A.
IPCONFIG/ALL
B.
IPCONFIG/RELEAS
C.
NETCONFIG
D.
WINIPCFG
【单选题】He______himself by listening to his favorite song before he addressed the meeting.
A.
release
B.
loose
C.
relieve
D.
relax
【单选题】外电源面板上有两个指示灯，它们是
A.
“ON”、“AVAIL”
B.
“ON”、“AC CONNECT”
C.
“AC CONNECT”、“NOT IN USE”
D.
“NOT IN USE”、“ON”
【简答题】Translate the following phrases into Chinese. check into a shabby hotel scold my wife for being stupid on our left for some minor fault an unpleasant blast of cold air go from one table to another sit...
【简答题】一个PPP帧的数据部分(十六进制)是7D 5E FE 27 7D 5D 7D 5D 65 7D 5E,试问真正的数据是什么?(用十六进制写出)
【单选题】清除内存中第一个字符为“A”的内存变量，应使用命令
A.
RELEASE MEMORY
B.
RELEASE ALL LIKEA*
C.
RELEASE MEMORY LIKE A*
D.
CLEAR MEMORY LIKE A*
【判断题】One of the most important objectives of venting design is releas compressed air.
A.
正确
B.
错误
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