According to different operation methods, reservoir operation can be divided into：
A: conventional reservoir operation and optimal reservoir operation
B: flood control operation, hydropower generation operation, comprehensive operation
C: long-term operation, short-term operation, real-time operation
D: single reservoir operation and multiple reservoir operation
A: conventional reservoir operation and optimal reservoir operation
B: flood control operation, hydropower generation operation, comprehensive operation
C: long-term operation, short-term operation, real-time operation
D: single reservoir operation and multiple reservoir operation
A
举一反三
- The connotation of mathematical operation is to solve mathematical problems according to operation rules on the basis of clarifying operation objects. It mainly includes understanding the operation object, mastering the operation rules, exploring the operation direction, selecting the operation method, designing the operation program and obtaining the operation result. Is this statement correct?
- According to what we learn ,which one is right? () A: on<br/>the operation time we can touch the hair B: on<br/>the operation time we can touch the operation field C: on<br/>the operation time we can touch the floor D: on<br/>the operation time we can touch the back said
- The flood limiting water level is determined by stages because in each stage of the flood season: A: flood control standards are different B: the operation goals of the reservoir are different C: the flood of the design standards are different D: flood data is insufficient
- In a randomized complete block design, if there is a certain interaction effect, then we can use ( ) to eliminate the interaction. A: Exponentiation B: Square-Root Operation C: Absolute value Operation D: Logarithm Operation
- The OR operation can be produced with
内容
- 0
In a hydraulic transmission system typical operating modes include manual operation、( )、( )、( ) and electro-hydraulic operation。
- 1
The operation was ___________ (success).
- 2
We use the robot in the operation because _________. A: it can send messages in a high speed B: even a top doctor can’t do the operation himself C: it can make the operation safer and better D: operations can be done without and doctors.
- 3
Subtraction is the ______ operation of addition.
- 4
This operation was operated on the date of _________.