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举一反三
【判断题】维生素C具有多种生理功能,缺乏时会引起多种症状,其中最明显的是维生素C缺乏病症状。
A.
正确
B.
错误
【单选题】—Why didn't Tom attend the meeting yesterday? —He ____ Beijing.
A.
has gone to
B.
had gone to
C.
went to
D.
had been to
【单选题】维生素和无机盐的缺乏会引起入体患多种疾病。下列有关无机盐、维生素缺乏症的表述中,正确的是( )。 ①缺乏含钙的无机盐易患佝偻病、骨质疏松症 ②缺乏含磷的无机盐易患地方性甲状腺肿 ③缺乏含锌的无机盐易造成生长发育不良,味觉发生障碍 ④缺乏维生素A易患神经炎、脚气病 ⑤缺乏维生素C易患坏血病,抵抗力下降
A.
①③⑤
B.
①②④
C.
②③④
D.
②④⑤
【简答题】Tom didn't attend the meeting,___we expected.
【单选题】Tom didn't attend the meeting, ( )we had expected.
A.
where
B.
that
C.
as
D.
what
【多选题】维生素C缺乏会引起的症状有( )。
A.
甲状腺异常
B.
坏血病
C.
关节出血
D.
皮下、肌肉出血
【单选题】—Why didn't Tom attend the meeting yesterday ? —He ____ Beijing . A . has gone to
A.
. has gone to
B.
. had gone to
C.
. went to
D.
. had been to
【单选题】以下关于维生素缺乏及过多症的说法中,错误的是()。
A.
犬.猫出现维生素C.维生素E缺乏时,即使饲料中含有维生素A,也会由于维生素A吸收效率下降而出现维生素A缺乏症;
B.
长期大量饲喂动物肝脏,易引起维生素A过多症或中毒,病犬表现为角膜增厚.呈云雾状.皮肤干燥.生殖功能降低;
C.
B族维生素在体内不易蓄积,故临床上一般不出现B族维生素过剩或中毒,相反,出现较多的是B族维生素缺乏症;
D.
动物多晒太阳,可以有效防治维生素D的缺乏。
【判断题】维生素C具有多种生理功能,缺乏时会引起多种症状,其中最明显的是坏血病症状。
A.
正确
B.
错误
【单选题】Why didn't Tom attend the meeting yesterday?
A.
has gone to
B.
had gone to
C.
went to
D.
had been to
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