7. What is the absolute pressure at the bottom of a lake that is 30.0 m deep, when the air pressure is 1.0 atm?
(A) 4.32×103 Pa
(B) 6.65×104 Pa
(C) 2.36×105 Pa
(D) 3.95×105 Pa
(E) 4.89×105 Pa
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統計: A(0), B(0), C(0), D(10), E(0) #2241911
統計: A(0), B(0), C(0), D(10), E(0) #2241911