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【单选题】
可燃气体爆炸极限下限低,表明
A.
危险性高,泄露出少量气体极可能达到爆炸极限范围引起爆炸
B.
危险性低,不容易爆炸
C.
泄露大量气体不会爆炸
D.
是安全气体
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【单选题】( 2019 全国卷 III )若将 n 粒玉米种子置于黑暗中使其萌发,得到 n 株黄化苗。那么,与萌发前的这 n 粒干种子相比,这些黄化苗的有机物总量和呼吸强度表现为
A.
有机物总量减少,呼吸强度增强
B.
有机物总量增加,呼吸强度增强
C.
有机物总量减少,呼吸强度减弱
D.
有机物总量增加,呼吸强度减弱
【简答题】完形填空。 I have always been interested in clowns (小丑). The earliest thing I can remember, as a child of three, is seeing a pair of clowns-one very fat, and the other very 1 . A traveling circus (马戏团) cam...
【单选题】( 2019 全国卷 III · 4 ) 若将 n 粒玉米种子置于黑暗中使其萌发,得到 n 株黄化苗。那么,与萌发前的这 n 粒干种子相比,这些黄化苗的有机物总量和呼吸强度表现为
A.
.有机物总量减少, 呼吸强度增强
B.
.有机物总量增加, 呼吸强度增强
C.
.有机物总量减少, 呼吸强度减弱
D.
.有机物总量增加, 呼吸强度减弱
【单选题】若将 n粒玉米种子置于黑暗中使其萌发,得到n株黄化苗。那么,与萌发前的这n粒干种子相比,这些黄化苗的有机物总量和呼吸强度表现为( )
A.
有机物总量减少,呼吸强度增强
B.
有机物总量增加,呼吸强度增强
C.
有机物总量减少,呼吸强度减弱
D.
有机物总量增加,呼吸强度减弱
【单选题】My father was a gruff man. I couldn't remember the last time he had tenderly stroked my cheek, tousled my hair or used a term of endearment when calling my name. His diabetes had given him a short tem...
A.
He was a bad-tempered man because of the disease he had suffered.
B.
He was an asocial man with little idea of using body language.
C.
He was an affectionate father who seldom joked.
D.
He was a loving father without much warm demonstration of love.
【简答题】皱褶( ) 逶( )迤( ) 沙砾( ) 遒( )劲( ) 訇( )然 尸骸( ) 健shuò( ) kù( )寒 苍qióng( ) liáo( )寂
【单选题】听力原文:M: Hey, Karen. Looks like you got some sun this Weekend. W: Yeah, I guess so. I spent the weekend at the beach. M: Oh, yeah? That's great. Where did you stay? W: Some friends of my parents live o...
A.
Relaxing at the seashore.
B.
Visiting her parents.
C.
Sailing on a boat.
D.
Preparing for a race.
【单选题】下列划线字注音不正确的一项是
A.
皱 褶 (zhĕ) 寥 寂(liáo) 锈 红(xiù)
B.
铁 锨 (xiān) 镐 头(hào) 逶 迤 (yí)
C.
镂 空(lòu) 尸 骸 (hái) 静 谧 (mì)
D.
沙 砾 (lì) 黏 结(nián) 訇 然(hōng)
【单选题】下列词语中,没有错别字的一组是( )
A.
笨拙 羞涩 粗糙 本末倒置
B.
感慨 沙砾 褶皱 触木惊心
C.
健硕 逶迤 仓穹 鲜为人之
D.
绞幸 白皙 徘徊 匠心独运
【单选题】下列对文章的 1 、下列词语中,有错别字的一组是( )
A.
沙砾 镂空 健硕 本末倒置
B.
焦炭 匍然 蕴含 盘根错节
C.
逶迤 药捻 铁锹 餐风宿露
D.
遒劲 苍穹 皱褶 触目惊心
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