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【简答题】
阅读短文,填空。 Birds Although (虽然) all birds may not look the same, all birds have certain things in common (共同点). All birds are warm-blooded. This means that their body temperature always stays the same. Birds breathe with lungs. A bird's body is covered with feathers. All birds have two wings. Baby birds are hatched from eggs. Birds can see very well. They can't move their eyeballs like people do, so they have to turn their heads to look at something. Birds' ears are round holes on the sides of their heads. There are about 9, 000 kinds of birds in the world. 1. There are over ____________ kinds of birds in the ____________. 2. Birds don't have ears like people do. Their ears are ____________ ____________ on the sides of their heads. 3. Birds can't move their ____________ so they have to turn their ____________ to look at something. 4. Birds have hundreds of ____________ but only two ____________ and ____________ wings.
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皮皮学刷刷变学霸
举一反三
【多选题】下列哪些属于茎卷须()
A.
栝楼
B.
葡萄
C.
豌豆
D.
绞股蓝
【单选题】汽车尾气中的NO、CO经催化剂催化,发生如下反应:2NO+CO→N 2 +CO 2 该反应中氧化剂是(  )
A.
NO
B.
CO
C.
N 2
D.
CO 2
【单选题】针对以下程序段,对于变量c的取值,至少需要(61)个测试用例才能够满足语句覆盖的要求。c=((u8_t*)q->payload)[i];switch(c){case SLIP_END: sio_send(SLIP_ESC,netif->state); sio_send(SLIP_ESC_END,netif->state); break;case SLIP_ESC: sio_send(SLIP_ES...
A.
4
B.
3
C.
2
D.
1
【单选题】汽车尾气中的NO、CO经催化剂催化,发生如下反应:2NO+CO→N 2 +CO 2 该反应中氧化剂是 [     ]
A.
NO
B.
CO
C.
N 2
D.
CO 2 筒量
【简答题】(8分)有效地利用现有新能源和开发新能源已受到各国的重视。 (1)工业上可用改进汽油组成的办法来改善汽油的燃烧性能。例如,加入CH 3 0C(CH 3 ) 3 ,来生产无铅汽油”。 H 3 COC(CH 3 ) 3 分子必存在的原子间连接形式有 。(填写编号,多选不得分) ①>C=0          ②>C=C$amp; ④ (2)天然气的燃烧产物无毒、热值高、管道输送方便,将成为我国西部开发的...
【单选题】患者男性,35岁。四年前开始常见便纸上有血迹。有时鲜血覆盖于大便表面。并伴肛门肿块脱出便后可自行回纳。该患者的诊断是?
A.
Ⅰ期内痔
B.
Ⅱ期内痔
C.
Ⅲ期内痔
D.
混合痔
【简答题】甲方沟通情况反馈,实地分析, 方案进一步深化。 2.绘制平面图示意图,并重点表示出家具之间的间距 3.完成总平面图及效果图 4.对这个餐饮空间的色彩做简要分析
【简答题】简述金融市场的构成要素。
【单选题】针对以下程序段,对于(A,B)的取值,以下( )测试用例能够满足判定/条件覆盖的要求。 IF((A-10)=20 OR (B+20)>10) THEN C=0 IF((A-30)<10 AND (B-30)<0) THEN B=30 1 A=50 B=-10 2 A=40 B=40 3 A=30 B=-10 4 A=30 B=30
A.
①②
B.
③④
C.
① ③
D.
②④
E.
① ④
【单选题】下列器官哪些属于同源器官( )
A.
茎刺,茎卷须
B.
茎刺,叶刺
C.
块根,内质直根
D.
块根,块茎
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