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What do you know about rodent control

1. Besides house rat and mouse, what kind of rat is commonly found in the urban of Hong Kong?
   
   a. Sewer rat
   b. Bandicoot
   c. Squirrel
2. The harm(s) brought by rat include(s):
   
   a. Rat bite
   b. Diseases
   c. Economic loss
3. Besides plague, scrub typhus, urban typhus etc., rodents can also transmit
   
   a. Influenza
   b. Hantaan fever
   c. Dengue fever
4. Which of the following group(s) of people is/are relatively more vulnerable to be bitten by rat?
   
   a. Baby
   b. Aged
   c. Woman
5. Which of the following(s) could be used for determining the presence of rat infestation?
   
   a. Rodent dropping
   b. Foot prints of rodent
   c. Gnawing marks of rodent
6. Apart from eliminating the harbouarges and entrances for rodents, we should also
   
   a. eliminate the food source for rodents
   b. keep dog
   c. lay moth balls
7. Which of the following can eliminate the food source for rodent?
   
   a. Keeping refuse inside refuse container with well-fitted cover.
   b. Keeping uncooked and cooked food separately.
   c. Throwing away the swill/food remnant.
8. For blocking the passage of rodents, the threshold clearance of doors must not be more than
   
   a. 6 mm
   b. 10 mm
   c. 20 mm