波形梁护栏板的镀锌量一般要求不得大于()g/m2。
A、425
B、500
C、600
D、650
参考答案:C
根据中文提示,用词组的适当形式填空。
1. Please ___________ ___________ (关掉) the radio. It's too loud.
2. I'm glad you have arrived ____________ ____________(准时) —the dinner is ready.
3. This old photo ____________ me ___________(使…想起) my happy childhood.
4. —You look tired. What happened? —I ___________ __________ (熬夜) late last night.
5. I've _________ ________ (赠送) some clothes to charity because they are too small for me.
第一产程适宜肥皂水灌肠的情况是
A.经产妇宫口扩张>14cmB.前置胎盘有少量 * * 流血C.有剖宫产史D.见红E.胎头未衔接