短波、超短波电容场作用深度可达骨骼,而直流电、低中频电流主要在皮肤层,次为肌层。
参考答案:对
用所给词的适当形式填空。
1. What _____ you _____ (bring) to the picnic?
2. Everything is beginning _____ (grow) now.
3. Jim wants to go home, so he needs _____ (find) the bus stop.
4. _____ you _____ (watch) the football game tomorrow?
5. _____ they _____ (have) dumplings for supper yesterday?
6. Look! They boys _____ (play) football on the playground.
7. He _____ (not know) much about China.
8. When your brother _____ (buy) the computer?
9. The farmers are all busy _____ (get) in the rice.
10. It's very hot today, but quite _____.(cloud)
中国自主承诺要在2020年实现单位GDP碳排放减少40%~45%。但中国政府表示坚决拒绝海外监督机构检查其减排进展,即便此前美国曾向中国不断施压。由此可见()
①主权国家在国际社会享有独立权
②中国对外坚持独立自主的基本立场
③中国坚决维护世界和平,构建和谐社会
④中国在世界经济发展中起决定作用
A.①②
B.①④
C.②③
D.③④