You cover the materials, but some of your pictures, Extension Ladder under types of portable ladders: By Design has NO information.
I am not sure that you emphasis the main points, clearly.
Also your format assumes that I have the ability to remember what I read and hear in a short space of time. No other literature of info to follow on long on to reinforce learning.
Your sample question are good except when get them wrong, 2 times, and they disappear without the correct answer so you can learn.
Not helpful to me.
7 years ago
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