问题
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:5,19,8,16,11,13,14,10,() A.13B.11C.18D.17
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:6,10,7,12,8,14,(),()A.9.16 B.9,13 C.10,11 D.11,14
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5,19,8,16,11,13,14,10,() A.13B.11C.18D.17
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6,10,7,12,8,14,(),() A.9.16 B.9,13 C.10,11 D.11,14
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易燃建筑起火后一般在()内,火焰就会烧穿门窗。(A)8-10min(B)11-13min(C)14-16min(D)17-19min
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孕妇血清绒毛膜促性腺激素(HCG)浓度达高峰是在妊娠( )。A.5~7周B.8~10周C.11~13周D.14~16周E.17