1. praise A. curtain B. Remain C. mountain D. certain 2. lose A. worse B. loose C. nose D. house 3. motto A. honour B. tomato C. consider D. complete 4. thin A they B. there C. thus D. theory 5. spare A. fear B. earn C. beard D. Pear患甲状腺肿大(俗称大脖子)的病人体内缺少的元素是
[ ]A.碘 B.钙 C.铁 D.锌