【单选题】在用最大泡压法测定表面活性物质水溶液的表面张力实验中,当气泡所承受的压力差达到最大时,气泡的曲率半径r与毛细管半径R之间的关系为 ( )
【单选题】病人出现amr综合征可能因肿大的甲状腺压迫
【单选题】以下诗句,读音标注全部正确的是:
A.
王濬楼船下益州,金陵王气黯然收 wáng xùn lóu chuán xià yì zhōu ,jīn líng wáng qì àn rán shōu
B.
仙掌月明孤影过,长门灯暗数声来 xiān zhǎng yuè míng gū yǐng guò ,cháng mén dēng àn shǔ shēng lái
C.
关城树色催寒近,御苑砧声向晚多 guān chéng shù sè cuī hán jìn ,yù yuàn zhān shēng xiàng wǎn duō
D.
角声满天秋色里,塞上燕脂凝夜紫。 jiǎo shēng mǎn tiān qiū sè lǐ ,sài shàng yān zhī níng yè zǐ 。
【判断题】通电直导线所受磁场力与磁感强度垂直,但不一定与该导线垂直
【单选题】下列词语注音字的读音不正确的一项是( )
A.
鱼凫(fú) 石栈(zhàn) 边塞(sài) 长吁短叹(xū)
B.
猿猱(náo) 扪参(shēn) 喧豗(huī) 嗟来之食(jiē)
C.
巉岩(chán) 吮吸(yǔn) 砯崖(pīnɡ) 峥嵘岁月(zhēnɡ)
D.
凋零(diāo) 湍急(tuān) 崔嵬(wéi) 多难兴邦(nàn)
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
Rich enough and old enough.
B.
Strong and under the age of 70.
C.
Healthy and over the age of 17.
D.
Having been trained and passed the driving test.
【判断题】通电直导线所受磁场力与磁感强度垂直,但不一定与该导线垂直。 ( )
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
Rich enough and old enough.
B.
Strong and under the age of 70.
C.
Healthy and over the age of 17.
D.
Having been trained and passed the driving test.