{#{QQABTQKAggCAAJAAAAgCQwGACACQkBGAAQgOAFAMsAABQQFABAA=}#}{#{QQABTQKAggCAAJAAAAgCQwGACACQkBGAAQgOAFAMsAABQQFABAA=}#}{#{QQABTQKAggC...
{#{QQABCQQEgggAQIIAAAhCQwlwCAMQkBCAAYgGRAAAMAABgRFABAA=}#}{#{QQABCQQEgggAQIIAAAhCQwlwCAMQkBCAAYgGRAAAMAABgRFABAA=}#}{#{QQABCQQEggg...
公众号：云儿和花高一质量监测联合调考生物学本试卷涡分100分，考试用时90分钟。注意事项：1.答题前，考生务必将自己的姓名、考生号、考场...
{#{QQABRQCEogAAAoAAAQhCAwHQCkOQkBCAASgGBFAIsAABQQNABAA=}#}{#{QQABRQCEogAAAoAAAQhCAwHQCkOQkBCAASgGBFAIsAABQQNABAA=}#}{#{QQABRQCEogA...
{#{QQABCQKQogCAAJIAAAhCUwGQCEMQkACCAQgGAAAIMAABQRFABAA=}#}{#{QQABCQKQogCAAJIAAAhCUwGQCEMQkACCAQgGAAAIMAABQRFABAA=}#}{#{QQABCQKQogCAAJIAAAhCUwGQCEMQkACCAQgGAAAIMAABQRFABAA=}#}
{#{QQABCQKQogCAAJIAAAhCUwGQCEMQkACCAQgGAAAIMAABQRFABAA=}#}{#{QQABCQKQogCAAJIAAAhCUwGQCEMQkACCAQgGAAAIMAABQRFABAA=}#}{#{QQABCQKQogC...
因为BE=√PB²-PE=√18-17=1,所以…………………………9分所以PO=√PE²-OE=4,则即二面角P-BC-A的正切值为4.……………………………………...
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