下列词语中加点字的读音正确的一项是( ) A.契合(qì)兴味(xìng) 桎梏

题型:选择题

问题:

下列词语中加点字的读音正确的一项是(    )

A.合(qì)味(xìng) 桎(gù)呼天地(qiāng)

B.丝(qiān)包(līn)痒(sào)虎作伥(wèi)

C.饱(zhàn)友(zhèng)肪(zhǐ)不见经(zhuàn)

D.席(yàn)琼(pā)缱(quǎn) 大风景(shà)

考点:字音
题型:选择题

引起化脓性脑膜炎的常见细菌包括()

A.金黄色葡萄球菌

B.肠球菌

C.流感嗜血杆菌

D.肺炎链球菌

E.脑膜炎奈瑟菌

题型:选择题

One day an ant was drinking at a small stream and fell in. She made desperate efforts to reach the side, but made no progress at all. The poor ant almost exhausted was still bravely doing her best when a dove saw her.Moved with pity, the bird threw her a blade of grass, which supported her like a raft, and thus the ant reached the bank again. While she was resting and drying herself in the grass, she heard a man come near. He was walking along barefooted with a gun in his hand. As soon as he saw the dove, he wished to kill it. He would certainly have done so, but the ant bit him in the foot just as he raised his gun to fire. He stopped to see what had bit him, and the dove immediately flew away. It was an animal much weaker and smaller than herself that had saved her life.

小题1:The ant could not reach the side though _______.

A.she cried for help

B.she asked the dove to save her

C.she tried very hard

D.she could smell well小题2:The dove saved the ant because _______.

A.she was the ant's friend

B.she took pity on the poor ant

C.the ant was almost exhausted

D.the ant had been struggled in the water for a long time小题3:The ant succeeded in getting on the bank with the help of _______.

A.a leaf

B.a piece of wood

C.a blade of grass

D.a raft小题4:Just as the man shot at the dove, _______.

A.the dove immediately flew away

B.the dove hid himself in the grass

C.the ant told the dove to leave at once

D.he felt something biting him in the foot小题5:In writing the story, the writer wants to show _______.

A.how clever the ant was

B.how kind the dove was

C.how the ant and the dove helped each other

D.we often need help from others, therefore we should help others as much as

题型:选择题

现有100g溶质的质量分数为20%的食盐溶液,要把它稀释成溶质的质量分数为10%的食盐溶液,需要加水的质量是______g;有反应A+B=C,若12gA与6gB恰好完全反应,生成C的质量是______g.

题型:选择题

请写出起落架的功用和配置形式。

题型:选择题

一质点沿直线Ox方向作加速运动,它离开O点的距离x随时间t变化的函数关系为x=5+2t3(m),该质点在t=0到t=2s时间段的平均速度为()

A.12m/s

B.10.5m/s

C.24m/s

D.8m/s

更多题库