在下列锁紧回路中（）锁紧方法非常可靠在轮胎起重机等液压支腿中普遍应用。A.换向阀锁紧 发布时间：2020-01-23 10:00 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在下列锁紧回路中（）锁紧方法非常可靠在轮胎起重机等液压支腿中普遍应用。A.换向阀锁紧回路B.液控单向蓄锁紧回路C.制动器锁紧回路D.都可行
题型：单项选择题 完形填空。 A: Excuse me, Robert. May I __1__ your ruler, please? B: Yes, of course....Oh, __2__ my ruler? I can't __3__ it. A: Is it in your desk? B: Let me __4__. No, it isn't. A: Is it in your schoolbag? B: No, it's not in the bag. Ah, I see it! It's under the desk __5__ the floor! Here you are. A: Thanks. But this one is __6__ . Do you have a long one? B: Sorry. I only have this one. A: Well, __7__ I get a long one? I need one now. B: You can buy a long one in the shop. A: __8__ shop? B: The one near our school. A: __9__ you think it's still open now? B: What's the time by your watch? A: It's about five fifty. B: I think it's still open. It opens at 8:30 a.m. and closes at 6:30 p.m. A: OK. Let's __10__ .( )1. A. borrow( )2. A. Where( )3. A. look ( )4. A. look ( )5. A. in ( )6. A. too short ( )7. A. where( )8. A. Where( )9. A. Are( )10. A. go and seeB lend B. Where's B. look at B. look at B. under B. very big B. where's B. What B. Do B. to go and see C. take C. What C. find C. find C. on C. very small C. where can C. Which C. Does C. to go and to seeD. give D. What's D. watch D. have a look D. next to D. too long D. where does D. Whose D. Is D. go and to see 查看答案
题型：单项选择题 下列各选项中，属于内力作用的是[ ]A、地质作用、岩浆活动、变质作用 B、地壳运动、岩浆活动、固结成岩作用 C、地壳运动、岩浆活动、变质作用 D、风化作用、搬运作用、沉积作用 查看答案
题型：单项选择题 患者，男性，60岁，普查发现肝左叶占位7cm。体检检查无阳性发现，肝肾功能正常肝癌切除术后最易发生的并发症是（）A.腹内出血 B.腹腔感染 C.肾衰 D.肺炎 E.下肢静脉栓塞 查看答案