27. For every inch you tilt your head forward, the pressure on your spine doubles. So if you’re looking at a smartphone in  your lap, your neck is holding up which feels like 20 or 30 pounds.
(A)forward
(B)on
(C) doubles
(D)in
(E)which

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統計： A(0), B(0), C(4), D(31), E(34) #2055889

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your neck is holding...
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#6607464
your neck is holding...
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