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【单选题】
She enjoys going to parties and ______ in discos all night long.A.
to dance
B.
dancing
C.
dance
D.
danced
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【单选题】有关骨骼肌的叙述正确的是（ ）
A.
骨骼肌由肌腹和肌腱两部分组成
B.
骨骼肌的收缩和舒张既能牵拉骨又能推开骨
C.
骨骼肌的收缩和舒张不需要神经系统的控制和调节
D.
肌腱将一块骨骼肌固定在同一块骨上
【单选题】下列关于骨骼肌的结构的说法正确的是（ ）
A.
骨骼肌由两端的肌腹和中央的肌腱构成
B.
骨骼肌由两端的肌腱和中央的肌腹构成
C.
骨骼肌由两端的血管和中央的肌腹构成
D.
骨骼肌由两端的神经和中央的肌腱构成
【简答题】Why are plastic surgery so popular among those young girls?
【简答题】哺乳动物的骨骼肌由 和 组成，它受 的调节和控制。环节动物蚯蚓体内有肌肉，但没有 ，以至于它不能 运动。
【简答题】听下面一段材料,回答第1-3题。 1. Why is the British government planning to tax plastic bags? A. To go with the rules in Ireland. B. To make them not too expensive. C. To reduce the amount of rubbish. 2. In which c...
【单选题】病人男，18岁，因“发热、咳嗽少痰1周，加重2天”就诊，曾用头孢克洛3天，治疗效果不佳，现胸片示右下肺小片状云絮状阴影，给予阿奇霉素治疗后症状改善，应考虑
A.
病毒性肺炎
B.
肺炎球菌肺炎
C.
金黄色葡萄球菌肺炎
D.
支原体肺炎
E.
念珠菌性肺炎
【单选题】Which sentence from the section "Giant Plastic Scooper" explains why trash is a problem in the ocean?
A.
It scoops plastic out of rivers as it drifts past.
B.
The machine is powered by the sun.
C.
Plastic bottles, bags and toys are a few examples of the trash.
D.
For example, whales might eat the plastic and die.
【单选题】Why is Lego trying to reuse its plastic Legos?
A.
because materials for making plastic are hard to find
B.
because plastic is not safe for kids to play with
C.
because plastic is expensive to make
D.
because plastic is bad for the environment
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