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【单选题】
ABC Company has 1500 managed devices and 15,000 end users on a campus network. LAN Management Solution (LMS) is being deployed as the network management application. What is the recommended number of network management server(s)?（）A.
1
B.
2
C.
3
D.
4
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【单选题】What did Charlotte ask Elizabeth to do?
A.
To come to visit her
B.
To write to her
C.
To give her a call
【单选题】We __________ 1000 English words since we __________ to learn English.
A.
learned; begin
B.
have learning; began
C.
have learn; begun
D.
have been learning; began
【简答题】发射光谱与激发光谱 在激光照射下,IP 的PSL 荧光体可发出(蓝-紫光),它由荧光体内少量的( )离子产生,发光强度不仅与潜影信息量有关,还可依据激光的波长而变,用波长为( )左右的红色氦-氖激光读取时效果最佳。我们把荧光体的发光强度与激光波长的关系曲线称为激发光谱曲线。在激光的激发下,PSL 荧光体发出强度与潜影信息量成正比的蓝-紫光,在( )波长处取得峰值。...
【多选题】根据权责发生制原则,应计入本期的收人和费用有 ( )
A.
本期实现的收入，并已收款
B.
本期实现的收入，尚未收款
C.
属于本期的费用，尚未支付
D.
属于以后各期的费用，但已支付
【多选题】What did Charlotte need from a marriage?
A.
comfortable home
B.
beautiful children
C.
protection
D.
romantic love
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