【单选题】Our class has ________ desks. [ ]
【简答题】选择听到的单词。 ( ) 1. A. friend ( ) 2. A. blue ( ) 3. A. red ( ) 4. A. sing B. find B. yellow B. green B. song C. friends C. pink C. purple C.
【简答题】读句子,选择相应的图片涂颜色。 1. I like the yellow shirt. 2. I like the blue dress. 3. I like the green sweater. 4. I like the brown jacket.
【简答题】填序号,按照奥运五环的顺序选择颜色。 ( ) ( ) ( ) ↑ ↑ ↑ ↓ ↓ ( ) ( ) 1. yellow 2. black 3. red 4. blue 5. green
【单选题】Why is the Yellow River “yellow”?
A.
Because the river suffers from soil erosion.
B.
Because the color yellow is the royal color.
C.
Because the first Emperor named it “Yellow River”.
D.
Because the river was named after the Loess Plateau.
【简答题】萃取操作时要注意哪些问题?萃取操作中若已发生乳化,应如何处理?
【单选题】关于叶片,下列说法错误的是
B.
v同时具备叶片、叶柄和托叶三部分的叶,称为完全叶;只具备其中一个或两个部分的,称为不完全叶
C.
叶片最宽处在叶长1/2以下:宽卵形、卵形、披针形 、狭披针形
D.
叶的两边缘近于平行:矩圆形、狭矩圆形、条形、线形、菱形。