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【单选题】
在菌落数报告的，不正确的一条是（）。A.
菌落数＜100时，按实数报告
B.
菌落数＞100时，采用两位有效数，它后面的数值以4舍5入法计算，再乘以10的指数
C.
菌落数如无法计算时，应注明所测标本的稀释倍数
D.
菌落数＜10时，不报告
E.
因菌落数太多无法计算，可不报告
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反馈参考答案：
举一反三
【判断题】You pass a co-worker in the hallway and he asks “How are you?”. You respond by telling him what happened bettwen you and your girlfriend/boyfriend.
A.
正确
B.
错误
【单选题】You pass a co-worker in the hallway and he asks "How are you?". You respond by:
A.
explaining that you are tired and stressed out in your job
B.
telling him that your back has been hurting you and you have a cold
C.
saying "Fine, thanks"
D.
asking “ Where are you going?”
【单选题】R 1 和 R 2 两个电阻并联,已知 R 1 =2R 2 , 且 R 1 上消耗的功率为 1W ,若 R 1 单独接在同一电源上, 则消耗的功率为( )。
A.
2W
B.
1W
C.
4W
D.
0.5W
【单选题】A co-worker shares office gossip/rumors with you. You:
A.
Thank him for telling you and pass the stories on
B.
Check out the facts with other employees
C.
Politely listen and keep the information to yourself
【单选题】已知两个电阻R 1 和R 2 ,且R 2 =3 R 1 ,串联接入电路中,如R 1 两端的电压是3伏,则R 2 两端的电压是多少
A.
1伏
B.
9伏
C.
3伏
D.
12伏
【单选题】FX2N系列可编程序控制器1ms定时器的定时范围是( )。
A.
0.01~327.67s
B.
0.001~32. 767s
C.
0.1~3276.7s
D.
0.1~99s
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