题目内容：
Look at the notes below.Some information is missing.
You will hear two people discuss details on a new order of security camera.
For each question (9-15), fill in the missing information in the numbered space using
a word, number or letter.
After you have listened once, replay the recording.
Character of Products:Character of Products:
It's very (9) __________with a lot of features.
Technical back-up:
An engineer (10) __________ within 90 minutes is available (11) __________hours a day.
Amounts of Order:
Because of ( 12 )__________buildings, (13) __________units are needed.
Delivery Schedule:
First (14) __________units can be delivered within 24 hours.
Marketing:
The new marketing (15) __________ helps the sales figure.
第(9)题______
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答案解析：