代谢性酸中毒是指（）<br>A:血浆［HCO<img src="/Image1/89/896a9832478aeeb9fc9ccace4efda9fc.jpg" />］原发性减少使pH下降，BE呈负值的情况<br>B:血浆［HCO<img src="/Image1/89/896a9832478aeeb9fc9ccace4efda9fc.jpg" />］原发性减少使pH下降，PaCO增加的情况<br>C:血浆［HCO<img src="/Image1/89/896a9832478aeeb9fc9ccace4efda9fc.jpg" />］原发性减少使pH下降，TCO增加的情况<br>D:血浆［HCO<img src="/Image1/89/896a9832478aeeb9fc9ccace4efda9fc.jpg" />］原发性减少使pH下降，BB增加的情况<br>E:血浆［HCO<img src="/Image1/89/896a9832478aeeb9fc9ccace4efda9fc.jpg" />］原发性减少使pH下降，SB增加的情况