细菌细胞壁的共同成分是____,植物细胞壁的主要成分是____。
植物细胞与原核细胞都具有细胞壁,其壁的组成是相似的。
A. 对
B. 错
Seeed Studio may be a business, but it still sees itself as a 1_______ in China’s maker revolution. Its 2_______ poster for new employees features a picture of the South American revolutionary Che Guevara, his head 3_______ electronic components instead of hair. The poster 4_______ people to come together to “challenge the hegemony of industrialized mass production in an 5__________ way!”
3慢性支气管炎患者咳痰的病变的基础是:
A. 支气管壁充血、水肿和慢性炎症炎症细胞浸润
B. 支气管粘膜上皮细胞变性、坏死
C. 腺体肥大、增生,浆液腺粘液化
D. 支气管平滑肌痉挛
E. 软骨萎缩、钙化或骨化